30 dozens of nuts were bought for ₹14400. If the nuts are sold in a packet of 5 for ₹250, then how much profit is earned?

30 dozens of nuts were bought for ₹14400.

1 dozen = 12

30 dozen = $$12\times30$$ = 360

360 nuts were bought for ₹14400.

cost price of one nut = $$\frac{14400}{360}$$ = ₹40    Eq.(i)

If the nuts are sold in a packet of 5 for ₹250.

selling price of five nuts = ₹250

selling price of one nut = $$\frac{250}{5}$$ = ₹50    Eq.(ii)

Profit on one nut = Eq.(ii)-Eq.(i) = ₹50-₹40 = ₹10

Profit on 360 nuts = $$₹10 \times 360$$ = ₹3600