Because of a leak, a tank which usually is filled in 3 hrs, now takes 3.5 hrs to be filled. The leak alone will empty the filled tank in

Foundation

Mathematics Foundation

Direct and Inverse Proportions

Mixture

Time Speed Distance

Question

Because of a leak, a tank which usually is filled in 3 hrs, now takes 3.5 hrs to be filled. The leak alone will empty the filled tank in

Cannot be determine

21 hrs

15 hrs

18 hrs

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$\frac{1}{3} - \frac{1}{x} = \frac{1}{3 .5}$

⇒ x = 21 hrs.