The distance between two stations P and Q is 250 km A train leaves P towards Q at 80 kmph After half...........

Quantitative Aptitude ( CCS) Problems on trains

The distance between two stations P and Q is 250 km. A train leaves P towards Q at 80 kmph. After half an hour another train leaves Q towards P at 120 kmph. Find the distance of the point where the two trains meet, from P.

132 km

145 km

128 km

124 km

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Explanation:

Solution:
The distance of the point where the two trains meet is “x”
x/80 – (250 – x)/120 = 1/2
3x – 2(250 – x) =1/2 * 240
3x – 500 + 2x = 120
5x = 620
x = 124 km.