Question

A person is to go up a tree 60 ft high. In every second, he climbs 5 ft but slips 4 ft. After how many seconds, will he be able to touch the top of the tree

Answer 1

In every sec, he covers 1 ft.

In 55 secs , he will cover , 55 ft.

In next 56th sec, he will touch 55+5= 60 FT TOP.

SO 56 Secs.