RRB Group D 10-Dec-2018 Shift 1 Solved Paper

Question : 31 of 100

Marks: +1, -0

A tank can be filled in 10 hours through a tap. However, due to a leak it takes 11 hours to fill. The tap is stopped when the tank in full. How many hours would it take the tank to the empty due to the leak?

Validate

Solution:

The tank will empty due to leak will in

={10×11}/{11-10}=110

hours

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