SSC CGL Tier II 21 Sep 2014 Paper

Question : 72 of 100

Marks: +1, -0

A man travelled a distance of 80 km in 7 hrs partly on foot at the rate of 8 km per hour and partly on bicycle at 16km per hour. The distance travelled on the foot is

32 km
48 km
36 km
44 km

Validate

Solution:

(1) Journey on foot = x km
Journey on cycle = (80 – x) km

∴{x}/{8}+ {80-x}/{16}=7

⇒{2 x+80-x}/{16}=7

⇒ x+80=16 × 7=112

⇒ x=112-80=32 {km}

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