Question

16. Reena sells a TV for Rs 18500 and she got a gain of 18%. What was the price at which she bought it?​

Answer 1

Answer:

Step-by-step explanation:

Sale price = 18,500

Profit = Sale price - cost price

⇒Profit = 18,500 - cost price

Profit % = 18

⇒ Profit % = ( profit / cost price ) / 100

⇒ 18 = [( 18,500 - cost price ) / cost price ] x 100

⇒ 9  = [( 18,500 - cost price ) / cost price ] x 50

⇒   9 x cost price = ( 18,500 - cost price ) x 50

⇒ 9 cost price = 9,25,000 - 50 cost price

⇒ 9 cost price + 50 cost price = 9,25,000

⇒ 59 cost price = 9,25,000

⇒ cost price = 9,25,000 / 59

⇒ cost price = 15678