Question

If 8 chocolates cost 64 rupees, what is the cost of 12 such chocolates in rupees?

• A. 32
• B. 48
• C. 72
• D. 96

Answer 1

The correct option is D 96

If the number of chocolates increases, the cost will increase, therefore, the number of chocolates and their cost vary in direct proportion.

Let us assume the cost of 12 chocolates to be $x$ rupees.
$\frac{8}{64}=\frac{12}{x}$
$\therefore 8x=768$ (multiplying both sides by 64$x$)
$\therefore x=96$
Hence, the cost of 12 chocolates is 96 rupees.