DECIMAL FRACTIONS- EXERCISE 3 (OBJECTIVE TYPE QUESTION 81 TO 90 )

81.   The sum of the first 20 terms of the series 1/5 x 6 + 1/6 x 7 + 1/7 x 8 + …….. is:

a)      0.16

b)      1.6

c)       16

d)      None of these

8If 1.5 X = 0.04 y, then the value of (y-X / y + x) is:

2.   

a)      730/77

b)      73/77

c)       7.3/77

d)      None of these

83.   The value of [35.7 – (3 + 1/3+1/3) – (2+ 1?2+1/2)] is.

a)      30

b)      34.8

c)       36.6

d)      41.4

84.   (0.1667) (0.8333) (0.3333) / (0.2222) (0.6667) (0.1250) is approximately equal to:

a)      2

b)      2.40

c)       2.43

d)      2.50

85.   The value of 3.6 x 0.48 x 2.50 /0.12 x 0.09 x 0.5  is :

a)      80

b)      800

c)       8000

d)      80000

86.   0.0203 x 2.92 / 0.0073 x 14.5 x 0.7 = ?

a)      0.8

b)      1.45

c)       2.40

d)      3.25

87.   The value of 3,157 x 4126 x 3.198 / 63.972 x 2835. 121 is closest to:

a)      0.002

b)      0.02

c)       0.2

d)      2

88.   The value of 489.1375 x 0.0483 x 1.956 / 0.0873 x 92.581 x 99.749 is closest to:

a)      0.006

b)      0.06

c)       0.6

d)      6

89.   The value of 241. 6 x 0.3814 x 6.842 / 0.4618 x 38.25 x 73.65 is close to:

a)      0.2

b)      0.4

c)       0.6

d)      1

90.   (0.2 x 0.2 +0.01 ) (0.1 + 0.02 )¯¹ is equal to:

a)      5/3

b)      9/5

c)       41/4

d)      41/12

ANSWERS

81.(A)

 82.(B) 

83.(A)

 84.(D) 

85.(B) 

86.(A) 

87.(C) 

88.(B))

 89.(B) 

90.(A)