100+ Decimal Fraction Aptitude Questions and Answers - 1
Question: 1
The product of 0.09 and 0.007 is
(A) 0.00063
(B) 0.00630
(C) 0.6300
(D) 0.000063
Ans: A
9 × 7 = 63.
Sum of decimal places = 5
∴ 0.09 × 0.007 = 0.00063.
Question: 2
29.92 × 2.4 + 21.28 × 4.5 = ?
(A) 147.568
(B) 167.568
(C) 167.658
(D) 176.568
Ans: B
Given expression = 71.808 + 95.76 = 167.568.
Question: 3
(0.75 × 4.4 × 2.4) ÷ 0.6 = ?
(A) 11
(B) 12
(C) 13
(D) 13.2
Ans: D
Given expression = 7.92 ÷ 0.6 = 79.2 ÷ 6 = 13.2.
Question: 4
Terry consumes 1600 ml of milk everyday. How many litres of milk she consume in 4 weeks?
(A) 41.6
(B) 43.3
(C) 44.8
(D) 48.2
Ans: C
Daily consumption = 1600 ml = 1.6 litres.
Consumption in 4 weeks = (1.6 × 4 × 7) litres = 44.8 litres.
Question: 5
54.327 × 357.2 × 0.0057 is the same as
(A) 5.4327 × 3.572 × 0.57
(B) 5.4327 × 3.572 × 5.7
(C) 54327 × 3572 × 0.0000057
(D) None of these
Ans: B
Number of decimal places in the given expression = 8.
Number of decimal places in (a) = 8.
Number of decimal places in (b) = 9.
Number of decimal places in (c) = 7.
Clearly, the expression in (a) is the same as the given expression.
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