100+ Decimal Fraction Aptitude Questions and Answers - 1

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Question: 1

The product of 0.09 and 0.007 is

(A) 0.00063

(B) 0.00630

(D) 0.000063

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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

(D) 176.568

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Ans: B

Given expression = 71.808 + 95.76 = 167.568.

Question: 3

(0.75 × 4.4 × 2.4) ÷ 0.6 = ?

(A) 11

(B) 12

(D) 13.2

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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

(D) 48.2

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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

(D) None of these

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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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100+ Decimal Fraction Aptitude Questions and Answers - 1

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