If \(\frac{4}{5}\)th of cistern is filled in 1 minute, how much more time will be required to fill the rest of it?

1
10 sec.
2
12 sec.
3
15 sec.
4
20 sec.

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Quick Navigation