Subject :IMO Class : Class 5
It takes John 6 seconds to cut a strip of paper into 2 equal pieces as shown below. How long would it take him to cut similar strips of paper into 10 pieces?
(A) 48 seconds
(B) 54 seconds
(C) 60 seconds
(D) 30 seconds
Ans 1: (Master Answer)
Class : Class 1
The correct answer is D.
Ans 2:
Class : Class 6
It is an error.
Ans 3:
Class : Class 6
Admin is wrong. To make a piece of paper into 2 pieces, we need only 1 cut and to make a piece of paper into 2 equal pieces the time taken is 6 seconds which is the time taken for 1 cut. So, the number of cuts for making a paper into 10 equal pieces will be 9, so, the time taken for making a paper into 10 equal pieces will be 9 X 6 seconds=54 seconds.