Aptitude - Decimal Fraction

Exercise :: Decimal Fraction - General Questions

16. 

Which of the following fractions is greater than 3 and less than 5 ?
4 6

A.
1
2
B.
2
3
C.
4
5
D.
9
10

Answer: Option C

Explanation:

3 = 0.75,    5 = 0.833,    1 = 0.5,    2 = 0.66,    4 = 0.8,    9 = 0.9.
4 6 2 3 5 10

Clearly, 0.8 lies between 0.75 and 0.833.

4 lies between 3 and 5 .
5 4 6


17. 

The rational number for recurring decimal 0.125125.... is:

A.
63
487
B.
119
993
C.
125
999
D. None of these

Answer: Option C

Explanation:

0.125125... = 0.125 = 125
999

18. 

617 + 6.017 + 0.617 + 6.0017 = ?

A. 6.2963
B. 62.965
C. 629.6357
D. None of these

Answer: Option C

Explanation:

  617.00
    6.017
    0.617
 +  6.0017
  --------
  629.6357
  --------- 

19. 

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

A. 0.006
B. 0.06
C. 0.6
D. 6

Answer: Option B

Explanation:

489.1375 x 0.0483 x 1.956 489 x 0.05 x 2
0.0873 x 92.581 x 99.749 0.09 x 93 x 100

= 489
9 x 93 x 10

= 163 x 1
279 10

= 0.58
10

= 0.058 0.06.


20. 

0.002 x 0.5 = ?

A. 0.0001
B. 0.001
C. 0.01
D. 0.1

Answer: Option B

Explanation:

2 x 5 = 10.

Sum of decimal places = 4

0.002 x 0.5 = 0.001