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Aptitude - Decimal Fraction

Exercise : Decimal Fraction - General Questions
16.
Which of the following fractions is greater than 3 and less than 5 ?
4 6
1
2
2
3
4
5
9
10
Answer: Option
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:
63
487
119
993
125
999
None of these
Answer: Option
Explanation:
0.125125... = 0.125 = 125
999
18.
617 + 6.017 + 0.617 + 6.0017 = ?
6.2963
62.965
629.6357
None of these
Answer: Option
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
0.006
0.06
0.6
6
Answer: Option
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 = ?
0.0001
0.001
0.01
0.1
Answer: Option
Explanation:

2 x 5 = 10.

Sum of decimal places = 4

0.002 x 0.5 = 0.001

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