CMAT Exam 2023 Shift 2 Solved Paper

Question : 12 of 100

Marks: +1, -0

A train running at

18 {\km}

per hour crosses a mark on the platform in 9 seconds and takes 25 seconds to cross the platform. If

P

is the length of the train and

Q

is the length of the platform in meters, then

(P, Q)=

__________

Solution:

Speed of train

=18 {\km} \/ {\hr}=5 {\m} \/ {\ s}

Let the length of train be '

{\P}

'
It is given,

\;\;{P}/{5}=9

\;P=45 m

Let the length of platform be '

Q

.
It is given,

\;\;{P+Q}/{5}=25

\;P+Q=125

\;Q=125-45=80 {\m}

(P, Q)=(45,80)

The answer is option A.

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