SSC CPO SI and ASI 2014 Paper

Question : 119 of 200

Marks: +1, -0

Motorcyclist P started his journey at a speed of 30 km/hr. After 30 minutes, motorcyclist Q started from the same place but with a speed of 40 km/hr. How much time (in hours) will Q take to overtake P?

1
$3/ 2$
$3/ 8$
2

Validate

Solution:

(2) Distance covered by motorcyclist P before Q started

=30 ×{1}/{2}=15 {km}

Relative speed = 40 – 30 = 10 km/h
Time taken by Q to catch P

= {15}/{10}= {3}/{2} h r

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