Question

The weight of 72 books is 12 kg.
(a)   Find the weight of 36 such books.
(b)  How many books will weigh 6 kg​

Answer 1

Answer:

weight of 72books = 12kg

then weight of a book = 72/12

a) = 6 kg weight of 1 book

weight of 36 books = 36 × 6=216 kg

b) 1 book will weigh 6 kg

Answer 2

$\large{\sf{Weight~of~72~books~=~12kg}}$

$\large{\sf{Weight~of~1~book~=~\frac{12}{72} }}$

$\large{\sf{Weight~of~1~book~=~ \frac{1}{6} kg}}$

$\large\blue{\sf{a.~}}$

$\large{\sf{~Weight~of~36~books~=~36 \times \frac{1}{6} }}$

$\large{\sf{Weight~of~36~books~=~6kg}}$

$\large\blue{\sf{b.~}}$$\large{\sf{No.~of~books~will~weigh~6~kg=~6~×~6}}$

$\large{\sf{=~36~books}}$