Question

George sold his mobile phone for Rs 7200, making a profit of 80 %.

Calculate the price at which he bought the mobile phone.

Answer 1

9000

Explanation:

80 percent *9000 =

(80:100)*9000 =

(80*9000):100 =

720000:100 = 7200

Answer 2

Rs. 4000

Explanation:

Profit = 80% = 180% of original price

Therefore,
`(180)/(100)x=7200\\ 180x=720000\\x=4000`