A tap can fill the tank in 15 minutes and another can empty it in 5 minutes. If the tank is already half -full and both the taps are opened together , how many minutes will the tank take to be emptied?

Question

A tap can fill the tank in 15 minutes and another can empty it in 5 minutes. If the tank is already half -full and both  the taps are opened together , how many minutes will the tank take to be emptied?

Accepted Answer

সঠিক উত্তর: 8। ব্যাখ্যা: