If the cost of 15 apples is ₹120, then find the cost of 3 dozens apples.

The correct option is A ₹ 288
$\because$ 15 apples cost = ₹120

$\Rightarrow$ Cost of 1 apple = $\frac{120}{15}$ = ₹8

$\therefore$ Cost of 1 dozen apples
= 8 $\times$ 12
= ₹96

So, cost of 3 dozen apples
= 3 $\times$ cost of 1 dozen
= 3 $\times$ 96
= ₹ 288