If the cost of $25$ bools is $₹\ 100$, then find the cost of $2$ books?

Given: The cost of $25$ bools is $₹\ 100$.

To do: To find the cost of $2$ books.

Solution:

Cost of $25$ books$=₹\ 100$

$\therefore$ Cost of one book$=\frac{100}{25}=₹\ 4$

$\Rightarrow$ Cost of $2$ books$=2\times4=₹\ 8$.

Thus, cost of $2$ books is $₹\ 8$.