MATHEMATICS JSS 2 SECOND TERM EXAMINATION

2ND TERM EXAMINATION

CLASS: JSS 2.

SUBJECT: MATHEMATICS.

TIME: 1 HOUR.

1. Express 1/16 in standard form.
   6.25 x 10   (B) 6.25 x 10-1   (C) 6.25 x 10-2   (D) 6.25 x 100
2. Simply 5/6 x  4 2/3  ÷   2 7/9
   2½   (B) 1 2/5   (C) 2/7    (D) 5/8
3. Express 15 metres as a percentage of 5 kilometres
   3%   (B) 0.3%   (C) 0.03%   (D) 0.003%
4. Find the square root of 3 6/25
   3.234   (B) 1.24   (C) 9/5    (D) 5/9
   Simply (1/4)2
   16   (B) 1/16   (C) 1/8    (D) 2
5. Round off 0.995 to the nearest hundredth
   0.95   (B) 0.94   (C) 1.00   (D) 1.45
6. Simply 8 x 109 divided by 4 x 106
   809/406   (B) 4 x 1015     (C) 4 x 103      (D)   2 x 103
7. Simplify -3 + (-3) – (-11)
   17   (B) -17   (C) 5   (D) -5
8. Simplify (-2) x (-12)  (+6)2
   2/3    (B) 3/2   (C) 5/6   (D) -1/7
9. What is the co-efficient of ‘y’ in the expansion of (6+y) ( 3-y)?
   3   (B) 6   (C) -3   (D) -6
10. Express 85 as a binary number
    11101012    (B) 10101012    (C) 11101102   (D) 10111102
11. 1110112 + 11112   =
    10010102   (B) 11101102   (C) 10011102   (D) 11111112
12. The heights of 10 students in meters are as follows:1.1, 1.8, 103, 1.1, 1.4, 1.2, 1.1, 1.3, 1.4, 1.2Use the information above to answer question 13 – 17.
13. Find the median height (a) 1.2  (B) 1.25  (C) 1.3 (D) 1.4
14. Find the mean height(a) 1.2  (B) 1.1  (C) 1.3  (D) 1.29
15. Find the range of the set of heights (A) 1.3  (B) 1.1  (C) 0.7  (D) 1.2
16. Find the modal height of the distribution(A) 1.8  (B) 1.3  (C) 1.2  (D) 1.1
17. If a student is picked at random, what is the probability that he is one of the shortest students?(A) 3/10   (B) 2/5   (C) ½    (D) 3/5
18. Express 4.55 x 10-3 in ordinary form (a) 0.00455   (B) 0.0455   (C) 45.5   (D) 455
19. Simplify 8- (-2) – (-1) (A) 16  (B) 11  (C) 5  (D) 3
20. Write the next two numbers in the sequence -4, -6, -8,   –     ,     –       ,(A) 10, 12   (B) -7, -12   (C) -12, -10   (D) -10, -12
21. Find the value of x in the diagram below (A) 1200    (B) 1480         (C)  1620    (D) 1800
22. Solve the equation 6a + 7 = 3a + 25 (A) 4   (B) 6   (C) 7   (D) 8
23. An isosceles triangle has _____ number of lines of symmetry (A) 0   (B) 1   (C) 2   (D) 3
24. How many lines of symmetry has an equilateral triangle? (A) 3   (B) 2   (C) 1   (D) 0
25. Round off 0.008251 to 2 significant figures (A) 0.82   (B) 0.83   (C) 0.0083   (D) 0.0082
26. If   a    =          4 x 9 x 16,   find the value of   a (A) 16   (B) 24   (C) 36   (D) 48
27. Solve 1/6 –b = 1/b -5 (A) 11/2   (B) –  9/2   (C) 12/5   (D)  1¾
28. Change the decimal fraction 0.016 to a common fraction (A) 4/250   (B) 2/125    (C) 4/125   () 1/625
29. Convert 107ten to a number in base two (A) 10101112   (B) 10111002   (C) 11101112   (D) 11010112
30. Write 394 in Roman numerals (A) CCCIV   (B) CCIX   (C) CCCICV   (D) CCCXCIV
31. A trader bought a book for N500.00 and sold it for N360. Calculate the percentage loss. (A) 18   (B) 30   (C) 28   (D) 36
32. The sum of two consecutive even number is 34. Find the smaller number? (A) 20   (B) 16   (C) 14   (D) 12
33. Calculate the length of the side of a square whose area is 1089cm2 (A) 21cm  (B) 23cm   (C) 32cm   (D) 33cm
34. Express 72 as the product of its factors. Leaving your answer in index form. (A) 22 x 33   (B) 23 x 32   (c) 24 x 32   (d) 22  x 33
35. Find the square root of 42¼ (A) 6 ½   (B) 8 ½   (C) 3 ¼    (D) 7 ¼
36. The value of six square is (A) 12   (B) 36   (C) 62   (D) 26
37. Find the range of the following set of numbers, 10, 10, 5, 11, 5, 11, 13, 7, 6 (A) 6  (B) 1  (C) 2  (D) 8
38. Find the L.C.M. of 10ab, 14b2 and 18ab (A) 14ab2  (B) 630ab2  (C) 360ab2  (d) 180ab2
39. Find the simple interest of N12,000 for 7 ½ years at 6% per annum?(A) N4500  (B) N5400   (C) N3800  (D) 6160
40. Find the value of x in the diagram below: (A) 280   (B) 410   (C) 680   (D) 340