Question

Usha wants to buy a dupatta that is 250 cm long. The shopkeeper wants her to give the measurement in metres. Can you help her?

Answer 1

We know that,
100 cm = 1 m
or 1 cm = $\frac{1}{100}\mathrm{m}$
∴ 250 cm = $\frac{1}{100}\times 250=2.50\mathrm{m}$
Thus, Usha should tell the shopkeeper that she needs a dupatta of 2.50 metre in length.