EXERCISE 4 (OBJECTIVE TYPE QUESTIONS in 21 30)

21.       Simplify: 13 – [5 – {6 + 2(7 – 8)}].

a)      13

b)      15.

c)       27

d)      32

22.       The value of 1÷ [1+ 1 ÷{ 1+ 1 ÷ 2)}] is :

a)      1/2

b)      5/8

c)       1

d)      2

23.       Evaluate : 8 – [15 – (-3 + 2) ] ÷2

                          |5 – 3 | - | 5 – 8| ÷ 3

a)      2

b)      3

c)       4

d)      5

24.       Which of the following pairs of fractions adds up to a number greater than 5?

a)      5/3,3/4

b)      7/5 ,11/5

c)       11 /4 , 8/3

d)      13/5, 11/6

NU

25.       1 + 1/2+ 1/4+ 1/7 + 1/14 + 1/28 is equal to:

a)      2

b)      2.5

c)       3

d)      3.5

26.       1 3/4 + 5 1/3 + 3 2/5 =?

a)      9 2/5

b)      9 29/60

c)       10 2/5

d)      10 29/69

27.       20 ½ + 30 1/3 -15 1/6=?

a)      34 1/6

b)      35 2/3

c)       35 5/6

d)      45 1/3

28.       If [p] means the greatest integer less than or equal to p, then [-1/4] + 4 ¼] + [3] is equal to:

a)      4

b)      5

c)       6

d)      7

29.       1 /(2 1/3) + 1/(1 ¾) is equal to

a)      7/14

b)      12/49

c)       4 1/12

d)      None of these

30.   5 5/6  - 3 /8/9 \ ? =1

a)      2/3

b)      3/2

c)       17/18

d)      3

ANSWERS 

21. C

22.B

23.D

24.C

25.A

26.D

27.B

28.C

29.D

30.C