Question Bank • QB_GA_074 NAT • 2 Marks

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

A man can row upstream at $8\text{ km/h}$ and downstream at $14\text{ km/h}$. Calculate the speed of the water current in $\text{km/h}$.

Answer Key:

3

Step-by-Step Solution & Explanation

Let boat speed in still water be $u$ and stream speed be $v$. $u + v = 14$ $u - v = 8$ Subtracting the two equations: $2v = 14 - 8 = 6 \implies v = 3.0\text{ km/h}$
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