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Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels onwards A at a speed of 25 kmph. At what time will they meet?

Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels onwards A at a speed of 25 kmph. At what time will they meet? Correct Answer 10 a.m.

Given:

Distance between the two stations = 110 km

Train from station A starts at 7 a.m

Train from station  B starts at 8 a.m

Speed of Train from A = 20kmph

Speed of Train from B = 25kmph

Formula Used:

Distance = speed × Time 

Calculation:

Let us assume that two trains meet x hours after 7.am

Distance travelled by train from A = 20x km

Distance travelled by train from B = 25(x - 1) km

According to question,

⇒ 20x + 25(x -1) = 110

⇒ 45x = 135

⇒ x = 3 hour

They will meet at 3 hours after 7 a.m

∴ They will meet at 10 a.m

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