Question

A book made from 400 sheets of paper and the book is 2.5cm thick. What is the thickness of each sheet of paper?

Answer 1

Answer:

Thickness of 400 sheets of paper

= 2.5 cm

Thickness of 1 sheet of paper = 2.5/400

= 0.00625

Answer 2

$\Large \bf Answer:$ 6.25×$10^{-3}$ cm

$\large \bf Step-by-step \:explanation:$

$\large \bf Given:-$

Total no. of pages in the book = 400

Thickness of the book = 2.5 cm

$\large \bf To\:Find -$

Thickness of each sheet of paper

$\large \bf Solution$

Thickness of 400 pages = 2.5 cm

∴ Thickness of each page =

$\frac{2.5}{400}$

$\implies$ Thickness of each page = 0.00625 cm

=$6.25 \times 10^{-3} cm$

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$\Large \bf Know\: More :-$

• The unitary method is a method in which we first find the value of a quantity and then the value of required number of quantities.

• It is based upon the concept of ratio and proportion.