Decimal Fraction Questions for AFCAT Exams - 1

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Question: 1

$${116}/{8} × {13.5}/{2}$$ = ?

(A) 97.875

(B) 99

(D) None of these

Ans: A

Given expression = $${116}/{8} × {13.5}/{2}$$ = 14.5 × 6.75 = 97.875.

Question: 2

A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can be make out of this cloth?

(A) 280

(B) 300

(D) 380

Ans: B

Length of each piece = $$({1}/{8})$$m = 0.125m.

∴ Required number of pieces = $$({37.5}/{0.125})$$ = $$({375 × 100} / {125})$$ = 300.

Question: 3

14.4 × 16.5 × 8 = ?

(A) 1908.0

(B) 1900.4

(D) 1912.4

Ans: C

144 × 165 × 8 = 190080

Sum of decimal places = 2.

∴ 144 × 16.5 × 8 = 1900.80.

Question: 4

$${4.41 × 0.16} / {2.1 × 1.6 × 0.21}$$ is simplified to

(A) 1

(B) 0.1

(D) 10

Ans: A

Given expression = $${441 × 16} / {21 × 16 × 21}$$ = 1.

Question: 5

If 213 × 16 = 3408, then 1.6 × 21.3 is equal to

(A) 34.08

(B) 3.408

(D) 340.8

Ans: A

1.6 × 21.3 = $$({16}/{10} × {213}/{10})$$ = $$({16 × 213}/{100})$$ =$${3408} /{100}$$ = 34.08.

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