Question

weight flof 72 books is 9 kg what will be the weight of 42 book. ratio and proportion​

Answer 1

Answer :-

• Weight of 42 books = 5 Kg

Given :-

• Weight of 72 books = 9 Kg

To Find :-

• Weight of 42 books = ?

Explanation :-

So, we have the weight of 72 books and we need to find the weight of 42 books. To find the weight of 42 books first we need to find the weight of 1 book.

$: \; \hookrightarrow \text{ \sf Weight of 72 books = 9} \sf \; \; Kg$

$: \; \hookrightarrow \text{ \sf Weight of 1 books = \sf \dfrac{9}{72} } \sf \; \; Kg$

$: \; \hookrightarrow \text{ \sf Weight of 1 books = \bf \dfrac{1}{8} or \bf 0.125} \bf \; \; Kg$

Now, finding the weight of 42 such books.

$: \; \hookrightarrow \text{ \sf Weight of 42 books},$

                       $\sf = 0.125 \times 42 \; \; Kg$

                       $\blue { \underline { \boxed { \sf = 5 \; \; Kg }}}$  

Hence, the weight of 42 such books is 5 Kg