Aptitude - Decimal Fraction
16.
0.1 x 0.1 x 0.1 + 0.02 x 0.02 x 0.02 0.2 x 0.2 x 0.2 + 0.04 x 0.04 x 0.04 =
Answer
(0.1)3 + (0.02)3 23 [(0.1)3 + (0.02)3] = 1 8 = 0.125
Answer :
Option BExplanation :
(0.1)3 + (0.02)3 23 [(0.1)3 + (0.02)3] = 1 8 = 0.125
17.
1.07 x 65 + 1.07 x 26 + 1.07 x 9 =
Answer
Given expression : 1.07 x (65 + 26 + 9) = 1.07 x 100 = 107
Answer :
Option CExplanation :
Given expression : 1.07 x (65 + 26 + 9) = 1.07 x 100 = 107
18.
8.32 x 0.999 =
Answer
8.32 x 0.999 = 8.32 x (1 − 0.001) = 8.32 − 8.32 x 0.001
= 8.32 − 0.00832 = 8.31168
Answer :
Option CExplanation :
8.32 x 0.999 = 8.32 x (1 − 0.001) = 8.32 − 8.32 x 0.001
= 8.32 − 0.00832 = 8.31168
19.
3.87 − 2.59 = ?
Answer
3.87 − 2.59 = 3 + 8799 − 2 − 5999 = 1 + 2899 = 1.28
Answer :
Option DExplanation :
3.87 − 2.59 = 3 + 8799 − 2 − 5999 = 1 + 2899 = 1.28
20.
0.2956 when expressed as vulgar fraction, is :
Answer
0.2956 = 2956 − 299900 = 29279900
Answer :
Option CExplanation :
0.2956 = 2956 − 299900 = 29279900
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