ABC26GN0803 · Decimal Fractions

Subject: General Aptitude · Chapter: Decimal Fractions · Exam: · Marks: · Difficulty:

Solve $\frac{294 \div 14 \times 5+11}{?}=8^{2} \div 5+1.7$ [IBPS-RRB Office Assistant (Online) Exam, 2015]
(a)8
(b)6
(c)12
(d)5
(e)10
Answer
Answer (as printed): A
Explanation
Let the missing number be $x$. $$\frac{294 \div 14 \times 5+11}{x}=8^{2} \div 5+1.7 \begin{aligned} & \Rightarrow \frac{\frac{294}{14} \times 5+11}{x}=\frac{64}{5}+1.7 \\ & \Rightarrow \frac{21 \times 5+11}{x}=12.8+1.7 \\ & \Rightarrow \frac{105+11}{x}=12.8+1.7 \\ & \Rightarrow \frac{116}{x}=14.5 \\ & \Rightarrow x=\frac{116}{14.5}=\frac{116 \times 10}{145}=8 \end{aligned}$$ Hence, the number is 8 .

Explanation as extracted from the printed page; notation may be imperfect.

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