Top 100+ Decimal Fraction Questions and Answers Pdf - 1

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Question: 1

Which of the following is equal to 3.14 × 10⁶?

(A) 311

(B) 314

(D) 3140000

View Answer

Ans: D

3.14 × 10⁶ = 3.140000 × 1000000 = 3140000.

Question: 2

47.7 × 12.4 × 8.6 = ?

(A) 5086.728

(B) 5218.668

(D) 6180.656

View Answer

Ans: A

477 × 124 × 86 = 5086728

Sum of decimal places = 3.

∴ 47.7 × 12.4 × 8.6 = 5086.728.

Question: 3

What decimal of an hour is a second?

(A) .0025

(B) .0256

(D) .000126

View Answer

Ans: C

Required decimal = $${1} / {60 × 60}$$ = $${1}/ {3600}$$ = .0027.

Question: 4

58.621 – 13.829 – 7.302 – 1.214 = ?

(A) 31.254

(B) 33.254

(D) 36.276

View Answer

Ans: D

Given expression = 58.621 – (13.829 + 7.302 + 1.214)

= 58.621 – 22.345 = 36.276.

Question: 5

The number 0.0561 correct to two places of decimals is

(A) 0.1

(B) 0.05

(D) 0.056

View Answer

Ans: C

The digit at the third decimal place is 6, which is greater than 5.

So, 0.0561, rounded to two decimal places, is 0.06.

Top 100+ Decimal Fraction Questions and Answers Pdf - 1

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