Question

C) The weight of 36 books in 12 kg.
what is weight of 75 such books​

Answer 1

Answer:

above image is your answer

Answer 2

Answer:

Weight of 36 books :- 12 kg

Weight of 75 books :- ?

Let the weight of 75 books be " x "

Equation will be :-

36 - 12

75 - x

It is direct variation!

$\begin{gathered}:\implies\sf{ 36 × x = 75 × 12 }\\ \\ \\ :\implies\sf{ 36x = 900} \\ \\ \\ :\implies\sf{ x = }\dfrac{ 900 } { 36 } \\ \\ \\ :\implies\sf{ 25 }\end{gathered}$

Therefore, Weight of 75 books is 25 kg