If the price of mangoes is decreased by 40%, one could get 32 more mangoes for ₹ 120. Find the original price of each mango.

Let the original price be ₹ N per kg.
New price per kg = 60% of N = 3N/5
∴ 120 / (3N/5) - 120/N = 32
⇒ 600/3N - 120/N = 32
⇒ 200/N - 120/N = 32
⇒ 80/N = 32
∴ N = 80/32 = 2.5
So, the original price is ₹ 2.50