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The distance between two stations P and Q is 750 km. One train leaves station P towards station Q at the average speed of 60 kmph. After an hour another train left station Q towards station P at the average speed of 72 kmph. The distance from station Q where the two trains meet is .... km.

The distance between two stations P and Q is 750 km. One train leaves station P towards station Q at the average speed of 60 kmph. After an hour another train left station Q towards station P at the average speed of 72 kmph. The distance from station Q where the two trains meet is .... km. Correct Answer 376.56

Distance between two train = 750 km

Speed of 1st train = 60 kmph

Speed of 2nd train = 72 kmph

Always remember,

For relative speed, opposite direction trains need to add and same direction train need to be the subtract

Relative speed of train = 60 + 72 = 132 kmph

Distance cover by train before meeting = 750 - 60 = 690 km

Time take to meet = 690/132 = 5.23 hours

∴ Distance travel from point Q = 5.23 × Second train speed = 5.23 × 72 = 376.56 km

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