Question

Four friends-Piya, Ishaan, Nihar and Mahek-
are stranded in a forest. The only way to safety is
a rickety bridge across a river. It is pitch dark and
they have only one torch. No more than two persons
can use the bridge at a time. How can they all get
across in 17 minutes if Piya can cross the bridge in
one minute, Ishaan in two minutes, Nihar in five
minutes and Mahek, in ten minutes?​

Answer 1

Explanation:

I think they should go in to group