A train after travelling 50km met with an accident and then proceeds at 3 4th of its former speed an...........

Quantitative Aptitude ( CCS) Problems on trains

A train after travelling 50km met with an accident and then proceeds at 3/4th of its former speed and arrived at destination 35min late. Had the accident occurred 24km further, it would have reached the destination only 20min late. Find the normal speed of the train?

36kmph

40kmph

38kmph

24kmph

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Explanation:

Solution:
20min = 24km
35min = 42km
Now ratio of speed –
normal ……………after accident
4………………………….3
Ratio of time – 3……………………4
. (+1) = 35
So 3 = 105 min
42/105*60 =24kmph