SSC CGL Tier II 12 Apr 2015 Paper

Question : 94 of 100

Marks: +1, -0

A man rows upstream 36 km and downstream 48 km taking 6 hours each time. The speed of the current is

Solution:

(3) Rate downstream of boat

= 48/6 = 8

kmph
Rate upstream

=36/6 = 6

kmph
∴ Speed of current

= 1/2

(Rate down stream – rate upstream)

=1/2 (8 – 6) = 1

kmph

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