ABC26GN0817 · Simplification
Subject: General Aptitude · Chapter: Simplification · Exam: 2008 · Marks: · Difficulty:
Find the missing numeral: (a) $(?-2763) \div 86 \times 13=208$ (L.I.C.A.D.O., 2007) (b) $3565 \div 23+4675 \div ?=430$
Answer
Explanation
(a) Let $(x-2763) \div 86 \times 13 = 208$. Then, $\frac{x-2763}{86} = \frac{208}{13} = 16 \Rightarrow (x-2763) = 16\times86 = 1376 \Rightarrow x = 1376+2763 = 4139$. (b) Let $3565 \div 23 + 4675 \div x = 430$. Then, $\frac{3565}{23} + \frac{4675}{x} = 430 \Rightarrow 155 + \frac{4675}{x} = 430 \Rightarrow \frac{4675}{x} = 430-155 = 275 \Rightarrow x = \frac{4675}{275} = 17$.
Explanation as extracted from the printed page; notation may be imperfect.
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