A shopkeeper bought 150 oranges for 22.50.30 oranges got spoilt. He sold the rest for 10k each. What was his %profit or loss

Answer 1

cost = 150 * 22.50
revenue = 120 * 10k
profit = revenue - cost
% profit = 100 * [ profit / cost ]

I have no idea what 10k is in whatever units. 100 thousand? no way