Allied & ICAR Exam Bank • ALLIED_2314 MCQ • 2 Marks

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

A swimmer can swim at 6 km/h in still water. He swims across a river of width 400 m flowing at 3 km/h. To reach the point directly opposite on the other bank, at what angle to the upstream direction must he direct his stroke?

Options:

  • (A) $60^\circ$
  • (B) $30^\circ$
  • (C) $45^\circ$
  • (D) $75^\circ$

Answer Key:

A

Step-by-Step Solution & Explanation

To travel perpendicular to flow, $\cos \theta = v_{\text{current}} / v_{\text{swimmer}} = 3/6 = 1/2 \implies \theta = 60^\circ$ to the upstream direction.
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