Question

A piece of ribbon folded five times is placed along a 30 cm long measuring scale as shown in figure. The length of the ribbon is between (a) 1.15 m – 1.25 m (b) 1.25 m – 1.35 m (c) 1.50 m – 1.60 m (d) 1.60 m – 1.70 m.

Answer 1

(b): 1.25 m – 1.35 m According to the above figure, the five times folded ribbon piece is

5 times of folded ribbon is approximately-

= ( 27.5 − 2 ) cm × 5 = 1.275 m .

The correct answer is option (b) 1.25 m − 1.35 m .