TRINITY INTERNATIONAL COLLEGE

TRINITY HILLS,  OFADA, OGUN STATE

FIRST TERM REVIEW TEST  2012/2013 SESSION

CLASS: BASIC 8                                         SUBJECT:  MATHEMATICS                                TIME:  HOURS

SECTION A: MULTIPLE CHOICE

INSTRUCTIONS: Answer ALL questions. Each is followed by four options lettered A – D. Find out the correct option for each question and shade in pencil on your answer sheet the answer space which bears the same letter as the option you have chosen. Do not waste time on any question. If you find any difficult, go to others and finish them before you come back to the difficult one(s).

Give only ONE answer to each question.

1.    Simplify                                                           

        (A)  40  (B)  28   (C)  0  (D)  -2

2.    Write 0.002 63 in standard form.

        (A)  2.63 ´ 10^-4   (B)    2.63 ´ 10^-3   (C)   2.63 ´ 10^-2  (D)  2.63 ´ 10^-1

3.   Which of the following statement is(are)  true?  a.  1 089 is divisible by 6.  b. 1 089 is     divisible by 9.    c. is a perfect square

        (A)   a only    (B) b only  (C)  c only  (D) b and c only

 4.   The next term in the sequence 2, 3, 5, 8, 12, 17, ………s

        (A) 19  (B) 20    (C)   23    (D)  24

 5.   In an exam 154 out of 175 candidates passed. What percentage failed?

         (A)        (B)        (C)            (D)   

 6    What is the place value of the 9 in 37.29 ?

         (A)  9 ´ 10^-4   (B)   9 ´ 10^-3   (C)   9 ´ 10^-2  (D)  9 ´ 10^-1

 7.   The shortest distance between two points is …

           (A)   a curve joining the two points  (B)a straight line joining the two points

           (C)   perpendicular bisector of the line (D)  angular bisector of the angles formed

 8.   Write 650 millionths in digits only

          (A) 0.000 65  (B)  0.006 5   (C)   0.065   (D)  0.65

9      How many  vertices does a square-based pyramid have?

           (A)  16  (B)  9  (C)   7  (D)  5

10.   Find the median of this set of numbers: 8, 6, 3, 10, 6, 9

          (A)  9   (B)  8   (C)   7   (D)  6

11.   An examination that is meant to last , would last for how many seconds?

           (A) !0 000 seconds  (B)  9 000 seconds   (C)   7 200 seconds     (D)   3 600 seconds 

 12.  Find the perimeter of a square of sides 5cm.

           (A) 25cm    (B) 20cm    (C) 10cm    (D)   5cm

 13.   Simplify 

            (A)        (B)        (C)            (D)   

 

14.   One half of a number is equal to 6. What is the number?

           (A)   15   (B)    12   (C)   6    (D)   3

15.    Find the least value by which 112 must be multiplied to give a perfect square.

            (A)  14   (B)   7    (C)    5   (D)   2

16.     Express in figure Twenty five thousand, five hundred and seventy three.

            (A)  25 573    (B)   25 730    (C)   205 073       (D)   250 703 .

 17.   Which is the greatest of these negative integers?

              (A)  -70 000  (B)   -7 000   (C)  -700  (D)  -70

 19.   Express 43,579 correct to the nearest thousand

               (A)  44 000   (B)  43 000   (C)  43 600   (D)  43 500

 20.   Calculate the value of angle z in the diagram below.

                                                                                                                                                                                                                                                        

 

                                                                                                                              80⁰    z

              (A)   100⁰   (B)   90⁰   (C)   50⁰   (D)   15⁰                                                                            

21.    Simplify -2[15 + (-9) - (-19)]                                                          

            (A)  -70  (B)  -50   (C)  -40  (D)  -25

 22.    What is the square root of 0.0081?

             (A)   0.09   (B)  0.9    (C) 9.0   (D) 90

 23.    What is the range of the following set of scores in a music test  4, 1, 3, 0, 2?

                (A)  0   (B)  2   (C)  4   (D)  5.

 24.     Simplify

             (A)  +25   (B)  +20    (C)   -20    (D)  -25

 25.     What is the circumference of a circle of radius 7cm? (Take = )

               (A)  24cm   (B)  44cm   (C)  37cm   (D)  77cm

  26.    Express 0.00754 in standard form.

              (A) 7.54 x10^-5      (B) 7.54 x 10^-3   (C) 7.54x10^-2         (D) 7.54 x10^-1

  27.    Express 9395 to 2 significant figures.

              (A)  9200    (B)9300   (C)  9400   (D) 9500

  28.    What is the sum of 12.41, 120 and 0.426

               (A)  117.876   (B)  121.836    (C)  132.836    (D)   132.866   

  29.    Simplify

             (A)     (B)      (C)      (D)

 30.   The marked price of a shirt is $140. If a discount of 25% is given for cash payment.

          What is the cash price?

               (A) $35     (B)  $105  (C)  $115     (D) $165

   31.    Simplify 6.5 x 10^-5 x 4.2 x 10⁵ and give your answer in standard form.

                (A) 2.73 x10¹            (B)  2.73x10²   (C) 27.3 x10¹  (D) 27.3 x 10 ².

   32.      Simplify 5⁵ x 5^-2 x 5^-1 divided by 5⁰

                     (A)  625    (B) 125   (C) 25          (D)  5

    

     33.     Find the LCM of 10a²b and 30ab

                 (A) 30a²b   (B) 10ab    (C) 5a²b      (D) 2a²b²

     34.     If 65⁰ is the supplementary angle of x, find x.

                  (A)  25⁰   (B)  45⁰    (C)  115⁰   (D)  135⁰

     35.    What is   of (-45q)

                 (A) +9q       (B) -9q (C)  -9  (D)  +9

     36.    Convert 102_ten to a number in base 2

                 A) 1100110₂    (B)  1010100₂    (C)  10011100₂    (D)  1110110₂

     37.    Divide £960 between Dumebi  and Gabriel so that for every £3 Dumebi gets Gabriel receives £5. What is Dumebi’s share?

                   (A)  £600     (B)  £576    (C)  £360   (D)  £300

     38.    In a group of 40 students, 25 are female. What percent of the group is male? 

                (A) 16.5%    (B)  37.5%  (C)  62.5% (D)  75.5%

     39.     8.04 to the nearest tenth is …..

                    (A)  8.0   (B)  8.05            (C)  8,1   (D) 10.0

     40.   Which one of the following is the inverse operation of divide by -8?

                  (A) divide by  -8      (B)    multiply by -8     (C) Subtract +8          (D) Add -1/8

     41.    How much interest does £1,200 make in  years at 30% per annum?

                  (A)  £520   (B) £530    (C)  £540  (D) £550.

     42.   What numbers does the Roman Numeral MCLXXII represent?

                  (A) 105   (B) 157   (C) 1172    (D) 11502

     43.    The average mass of six people is 58kg. if  one of the people has a body mass of 43kg.     What is the average mass of the other 5 people?

                (A)    58kg   (B)    61kg     (C)   64kg  (D)     68kg

     44.   Which of these quadrilateral  has ONLY ONE line of symmetry

                (A)  kite   (B) parallelogram   (C)  rectangle  (D) trapezium.. .       

    45.    The square root of a number is 4k.What is half of the number?

                (A)  2k  (B)   4k²    (C)   6k   (D)    8k²

    46.    An article was bought for N160 and was sold for N200. What was the percentage profit?

               (A)  75%  (B)  40%    (C)  25%     (D)  20%

    47.    The scores of ten students in Basic 8 silver are 3, 1, 5, 6, 4, 7, 6, 7, 5, 6. What is the mode of the scores?

              (A) 7  (B) 6  (C) 4  (D) 3

   48.     Add the square root of 4  to the square of 4, and divide the result by 2.

               (A)  2   (B)  4   (C)  7   (D)   9

   49.    Simplify the expression:

               (A)  36n  (B) 18n   (C) 12n (D) 10n

    50.    A cartoon of biscuit holds 90 packs of biscuit. How much would the tuck shop manager make if he sells each pack for N650?

               (A) N68 500    (B)   N58 500  (C) N56 500   (D) N55 800

    51.   Which of the following options give the correct factors of 36?

               (A)  1, 3, 4, 6, 10, 18, 36   (B)   1, 2, 3, 4, 6, 9, 12, 18, 36

               (C)  1, 2, 4, 6, 8, 12, 36      (D)   1, 5, 8, 9, 12, 18, 36

    

52.   Find the square root of 20 ¼.

         (A)       (B)       (C)     (D)  

53.   Find the area of a square board of sides k m.

           (A) 2k m² (B) k² m² (C) k m² (D) k/2 m²

 54.   The L.C.M. of 5ab² and 3a²b is….

          (A) 5a³b  (B) 3a⁵b (C) 15ab (D) 15a²b²

 55.   Subtract -18 from the product of 4 and 10; then divide the result by -2

           (A)  40      (B)    22   (C)    -29      D)   -8.

 56.    Change 10010_two to base 10 

             ( A)   25  (B)  18  (C) 10  (D)  6

 57.    If  0.0075 is written as 7.5 x 10ⁿ, the value of n is

            ( A)  5   (B)  3   (C)  -3  (D)  -5 

 58.    Express 2.1km 201m 48cm in metres

           (A)   2 301.48m  (B)   230 148m    (C)  2 120.148m   (D)  2 120 148m

 59.     Each face of a cube is in the shape of a…….

             (A)   triangle    (B)    rectangle   (C)   square    (D) circle

 60.    What is the sum of the first five prime numbers?

             (A)  15   (B)   18   (C)   25   (D)   28    

 61.    Find the area of  a circle of radius 3m. (p=3.1)

             (A)  27.9m²   (B)  27.2m²   (C)  28.2m²   (D)   28.3m²

 62.    Evaluate 11011 + 101, each number is in base two. Give your answer as binary number.

             (A) 100 000   (B) 110 000   (C) 101 000   (D) 100 100

 63.     Find the H.C.F. of 144, 90  and 54.

            (A)  6  (B)  9  (C) 18  (D)  36

 64.     Simplify       

            (A)        (B)      (C)     (D)         

 65.     A number is divisible by 6 if…….

             (A)   the unit digit is 0 or 6   (B)  the sum of the digits is divisible by 6  

             (C)   the last digit is even and the sum of the digits is divisible by 3 

             (D)    the  last three digits formed a number divisible by 6

 66.     Simplify:   2a^-1 X (3a)²

              (A)   3a²    (B)    12a^-1   (C)   18a (D)   6a^-2

 67.    A  television set costs N 15,400.00 . A discount of 12% is given for cash.

           What is the price for cash payment?

            A.  N1 283.00   B.  N1 848.00     C.  N13 475.00    D. N13,552.00

 68.    What is the simple interest on N600.00 for 5 years at 2% per annum?

                        A.    N50.00             B.   N60.00               C.  N70.00

                        D.   N80.00               E.    N100.00

 69     If  0.68 is expressed as a fraction in its lowest term, its denominator is

                  A.  40        B.    29         C.    25         D.   17          E.    18

70    The sum of  N 237,000.00 was budgeted to be spent on welfare by a special welfare club.   Express this amount in standard form.

                  A.   2.37 X 10⁵     B.    2.37 X 10³     C.   2.371 X 10^-3     D.   2.37 X 10^-5          

 71.   Correct 48.6094 to two significant figures.

           A.   48.00    B.  48.60      C.    48.61      D.   49.00      

72.    Find the multiplicative inverse of  -.

           A.            C.     -         D.  -

73.    Find the H.C.F of 10²y  and  14y².

           A.    2         B.   ²y        C.   ²        D.             

74.    A motor dealer bought a second hand car for N180,000 and sold it at  N225,000.

            Find the gain percent.

             A.    20%       B.     25 %      C.    30 %     D.   35 %       

 75.    Express 0.25 as a fraction.

             A.   2/5         B.      5/11        C.     25/61          D.  ¼             E.   4/5

 76.   The mean age of five pupils whose ages are 5, 6,  7 and 12 is 7 years. Find the median age.

                A.   12 years           B.  7 years         C.    6 years          D.     5  years     E.  4 years

 77.    An article bought for N190.00 was sold at a profit of  x% at N226.00. What is x?

                A.    10.9              B.    18.9       C.   27.9        D.    37.9         E.   47.9

 78.      Express  as a decimal fraction.

             A.    0.000 8       B.    0.008      C.   0.08      D.  0.8

  79.     A square has a perimeter of 48cm. Find its area in cm².

             A.   244 cm²       B.   204 cm²       C.    160 cm²      D.    144 cm²    

  80.     Arrange:    2/3, ¾, 7/8  and  6/7 in ascending order of magnitude.

                A.    2/3, ¾, 6/7, 7/8            B.     ¾, 2/3, 7/8, 6/7             C.     6/7, 2/3, ¾, 7/8

                 D.      7/8, 2/3, ¾, 7/8                      E.      6/7, 7/8, ¾, 2/3

  81.    Simplify:    490    10000

                    A.    0.000049           B.    0.00049         C.    0.0049        D.   0.049       E.   0.49

  82.   The sum of   minutes and   seconds expressed in minutes gives   ……………..

                   A.     60a + b                          B.    a + 60b                  C.   ( a + b) 60  

                    D.      + b                           E.     a  +           

  83.   The angle at the vertex of an isosceles triangle is 80⁰. The size of one of the base

           angles is ……………….

                   A.    100⁰          B.   80⁰              C.    50⁰             D.    40⁰               E.   20⁰

   84.   A bookshelf can hold 84 books each 3 cm wide. How many books of width

               4 cm can it hold?

                  A.     56                 B.    63                        C.    84          D.   105               E.   112

   85.  What must be multiplied by 144 to make it a perfect square?

               A.     1                      B.   2               C.  3                D.   

  86.    Evaluate 110_two´ (101_two +1001_two ─ 111_two)

             A.     1                        B.   2               C.  3                D.   

  87.   Simplify (4.8 ´10¹⁵) ÷ (0.12 ´ 10⁵) Express your answer in standard form

.             A.     4.8 ´10¹⁵        B.   4.0 ´10¹¹       C.  48 ´10¹⁵      D. 40 ´10¹¹ 

  88.   Simplify  4c³ x 7c²

               A.   28c⁵        B.    11c      C.  25c²   D.   7c³

            

  89.   Remove brackets and simplify 8(a + b) − 7(2a − b)

           A.  15b−6a  B. −15a +  6a   C. 6b −15a   D.  15b + 6a 

 

90.  Find the LCM of 3x²y and 2xy^2.

           A.  6x²y^2.    B. 6x²y ^.    C.  3xy^2.         D.  2x²y

             The Earth is about 1.5 x 10⁸  Km from the sun. The planet Saturn is about 1.43 x 10⁹ km from the sun. Suppose the sun, the Earth and Saturn are in a straight line. What is the distance between Earth and Saturn;

 91.   When they are on directly opposite sides of the sun.

            A.  1.58 x 10⁹  Km  B. 1.58 x 10⁸  Km   C.   2.5 x 10⁷  Km    D.   1.5 x 10⁶  Km

  92.   When they are on the same side of the sun.

               A.   1.28 x 10⁹  Km   B.   1.28 x 10⁸  Km     C.  2.5x 10⁷  Km    D.  15 x 10⁶  Km

 93.   Find the smallest number by which 540 must be multiplied so that the product is a perfect       square.

              A.    15 B. 12   C.  5    D.  3

         

   94.   Go is a Japanese game played on a square board divided into smaller squares.

             There are 5184 smaller squares. How many small squares are there along each side?

             A.     72    B.  36      C.    12      D.   7

  95.    Convert 10.09%

             A.     0.190  B.  0.1090    C.    0.1009    D.  0.01009

    96.    Which of the following are correct?

                       I.  -600%  +  750 = 15 II.  -600%  +  750 = 744

                      III.   -600%  +  750 = 150%  IV .  -600%  +  750 = 74 400%    

                 A.  all   B.  I and II     C.     II and  IV   D.  I  and  III

  97.    Which of  the following are correct?                     

                      I.  50%  -  0.39 = 0.11    II.   50%  -  0.39 = 11%

                      III.   50%  -  0.39 = 49.6%     IV.  50%  -  0.39 = 0.4961    

                 A.  all   B.  I and II     C.    I and  III  D.   III and  IV

98.       An article bought for N190.00 was sold at a profit of  x% at N226.00. What is x?

                A.    18.9              B.   27.9             C.    37.9         D.   47.9.       

99.         The square root of a number is 2k.What is half of the number

                        (a)  2k  (b) 2k²  (c) 4k   (d)4k²

100.       Subtract -18 from the product of 4 and 10; then divide the result by -2

                            (a) 40         (b) 22    (c) -29   (d)  -8.