Two trains start at the same time form Munbai and Pune and proceed towards each other at the rate of 60 km and 40 km per hour, respectively. When they meet, it is found that one train has travelled 20 km more than the other. Find the distance between Mumbai and Pune.

150 km

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100km

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120 km

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None of these

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Solution

The correct option is B 100km
(b)
Distance between Mumbai and Pune
$= d (\frac{s_{1} + s_{2}}{s_{1} - s_{2}}) k m$

$= 20 (\frac{60 + 40}{60 - 40}) k m = 100 k m$

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