7 taps of the same size fill a tank in 1 hour 36 minutes. How long wil

1.	7 taps of the same size fill a tank in 1 hour 36 minutes. How long will 8 taps of the same size take to fill the tank?
Answer» More the number of taps, lesser the time required to fill a tank. So, it is an inverse proportion. Let the required time be x minutes. ⇒ 7 × (60 + 36) = 8 × x ⇒ x = \(\frac{7\,\times\,96}{8}\) = 84 minutes = 1 hour 24 minutes

7 taps of the same size fill a tank in 1 hour 36 minutes. How long will 8 taps of the same size take to fill the tank?

Answer»

More the number of taps, lesser the time required to fill a tank. So, it is an inverse proportion.

Let the required time be x minutes.

⇒ 7 × (60 + 36) = 8 × x

⇒ x = \(\frac{7\,\times\,96}{8}\) = 84 minutes = 1 hour 24 minutes