Two trains start from A and B respectively and travel towards each other at a speed of 60 km/hr and 75 km/hr respectively. By the time they meet, the second train has traveled 70 km more than the first. The distance between A and B is :
Solution: At the time of meeting, let the distance traveled by the first train be x km.
Then, distance covered by the second train is (x + 70) km.
.'. x/60 = (x + 70)/75 => 75x = 60x + 60*70
=> 15x = 4200 = x = 280 km.
so, distance between A and B = (x + x + 70)
= 280 + 280 + 70
= 630 km.
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