SSC CHSL 19 Apr 2021 Shift 3 Paper

Section: Quantitative Aptitude

Question : 62 of 100

Marks: +1, -0

A man walking at a rate of

4 {km} \/ {h}

crossed a tunnel in

18 {min}

. What is the length of the tunnel in meters?

Solution:

Given, man's speed

=4 {km} \/ {h}

=4 × \;{5}/{18} {m} \/ {s}

∴

Distance covered in

18 {min}

or in

18 × 60 {sec}

=4 × \;{5}/{18} × 18 × 60=1200 {m} \;\text ". "\;

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