30 dozen of bananas can be bought for ₹1,080. How many bananas can be bought for ₹72?

The correct option is C 24 bananas
Cost of 30 dozen bananas = ₹1,080
$\Rightarrow$ 30 $\times$ 12 bananas cost = ₹1,080
$\Rightarrow$ 360 bananas cost = ₹1,080
$\Rightarrow$ 1 bananas costs = $\frac{1080}{360}$ = ₹3
$\because$ 1 banana costs ₹3 , hence for ₹72 , we can buy
$\Rightarrow$ $\frac{72}{3}$ = 24 bananas