By selling a tin of vegetable oil for 1,320.50 naira, a man made a profit of 150.50 naira. How much did he pay for it?
Let the cost price of the tin of vegetable oil be x.
Therefore, selling price = cost price + profit
1320.50 = x + 150.50
x = 1320.50 - 150.50
x = 1170
Therefore, the man paid 1170 naira for the tin of vegetable oil.