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Decimal Fraction - Aptitude MCQ Questions and Solutions with Explanations

Decimal Fraction MCQ Questions and answers with easy and logical explanations.Arithmetic Ability provides you all type of quantitative and competitive aptitude mcq questions on Decimal Fraction with easy and logical explanations. Decimal Fraction MCQ is important for exams like Banking exams,IBPS,SCC,CAT,XAT,MAT etc. Page-3 section-2

Each section contains 100 MCQs on Decimal Fraction .
21
(0.05 × 6.25) ÷ 2.5 = ?
Discuss
Answer & Solution
Answer: Option E
Solution:
given expression :
= $$\frac{0.05 × 6.25}{2.5}$$
= $$\frac{0.3125}{2.5}$$
= $$\frac{3.125}{25}$$
= 0.125
22
If 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 = ?
Discuss
Answer & Solution
Answer: Option C
Solution:
= $$\frac{29.94}{1.45}$$
= $$\frac{299.4}{14.5}$$
= $$\frac{2994}{14.5}$$ × $$\frac{1}{10}$$
= $$\frac{172}{10}$$
= 17.2
23
0.5 × 0.5 + 0.5 ÷ 5 is equal to :
Discuss
Answer & Solution
Answer: Option C
Solution:
Given expression :
0.5 × 0.5 + $$\frac{0.5}{5}$$
= 0.25 + 0.1
= 0.35
24
If 13 + 23 + 33 + .... + 93 = 2025, then the value of (0.11)3 + (0.22)3 + .... + (0.99)3 is close to :
Discuss
Answer & Solution
Answer: Option C
Solution:
$$\eqalign{ & {\left( {0.11} \right)^3} + {\left( {0.22} \right)^3} + .... + {\left( {0.99} \right)^3} \cr & = {\left( {0.11} \right)^3}\left( {{1^3} + {2^3} + .... + {9^3}} \right) \cr & = 0.001331 \times 2025 \cr & = 2.695275 \approx 2.695 \cr} $$
25
The value of $$\left( {\frac{{8.6 \times 5.3 + 8.6 \times 4.7}}{{4.3 \times 9.7 - 4.3 \times 8.7}}} \right)$$     is :
Discuss
Answer & Solution
Answer: Option D
Solution:
Given expression :
$$\eqalign{ & = \frac{{8.6 \times \left( {5.3 + 4.7} \right)}}{{4.3 \times \left( {9.7 - 8.7} \right)}} \cr & = \frac{{8.6 \times 10}}{{4.3 \times 1}} \cr & = 20 \cr} $$
26
$$\frac{3.25 × 3.20 - 3.20 × 3.05}{0.064}$$      is equal to :
Discuss
Answer & Solution
Answer: Option D
Solution:
Given expression :
= $$\frac{3.20 (3.25 - 3.05)}{0.064}$$
= $$\frac{3.20 × 0.2}{0.064}$$
= $$\frac{0.64}{0.064}$$
= $$\frac{64}{6.4}$$
= 10
27
Solve : $$\frac{17292}{33}$$  ÷ 8 = ?
Discuss
Answer & Solution
Answer: Option C
Solution:
= $$\frac{17292}{33}$$ × $$\frac{1}{8}$$
= $$\frac{17292}{33 × 8}$$
= 65.5
28
Solve this : $$\frac{1.6 × 3.2}{0.08}$$  = ?
Discuss
Answer & Solution
Answer: Option D
Solution:
Given expression :
= $$\frac{16 × 32}{8}$$
= 16 × 4
= 64
29
Solve $$\frac{3}{5}$$ of $$\frac{4}{7}$$ of $$\frac{5}{12}$$ of 1015 = ?
Discuss
Answer & Solution
Answer: Option D
Solution:
Given $$\frac{3}{5}$$ of $$\frac{4}{7}$$ of $$\frac{5}{12}$$ of 1015
⇒ x = $$\frac{3}{5}$$ × $$\frac{4}{7}$$ × $$\frac{5}{12}$$ × 1015
⇒ x = 145
30
The value of $$\frac{241.6 × 0.3814 × 6.842}{0.4618 × 38.25 × 73.65}$$     is close to :
Discuss
Answer & Solution
Answer: Option B
Solution:
$$\frac{241.6 × 0.3814 × 6.842}{0.4618 × 38.25 × 73.65}$$
≈ $$\frac{240 × 0.38 × 6.9}{0.46 × 38 × 75}$$
= $$\frac{240 × 38 × 69}{46 × 38 × 75}$$   × $$\frac{1}{10}$$
= $$\frac{24}{5}$$ × $$\frac{1}{10}$$
= $$\frac{4.8}{10}$$
= 0.48
So, the value is close to 0.4