100+ Decimal Fraction Questions for TNPSC Exam - 1
Question: 1
Which of the following fractions is the smallest?
(A) $${13}/{16}$$
(B) $${15}/{19}$$
(C) $${17}/{21}$$
(D) $${7}/{8}$$
Ans: B
We have
$${13}/{16}$$ = 0.8125, $${15}/{19}$$ = 0.7894, $${17}/{21}$$ = 0.8095 and $${7}/{8}$$ = 0.875.
Since 0.7894 is the smallest, so $${15}/{19}$$ is the smallest.
Question: 2
The value of $${3.6 × 0.48 × 2.50} / {0.12 × 0.09 × 0.5}$$ is
(A) 80
(B) 800
(C) 8000
(D) 800000
Ans: B
$${3.6 × 0.48 × 2.50} / {0.12 × 0.09 × 0.5}$$ = $${36 × 48 × 250} / {12 × 9 × 5}$$ = 800.
Question: 3
(833.25 - 384.45) ÷ 24 = ?
(A) 1.87
(B) 18.7
(C) 2.01
(D) 20.1
Ans: B
Given expression = 448.8 ÷ 24 = 18.7.
Question: 4
(0.05 × 5 - 0.005 × 5) equals
(A) 0.0225
(B) 0.225
(C) 0.250
(D) 0.275
Ans: B
Given expression = 0.25 - 0.025 = 0.225.
Question: 5
$${1.6 × 3.2} / {0.08}$$ = ?
(A) 0.8
(B) 6.4
(C) 8
(D) 64
Ans: D
Given expression = $${16 × 32}/{8}$$ = 16 × 4 = 64.
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