The price of ticket of a cinema hall is increased in the ratio 7 : 13. Find the increase in the price, if the increased price is Rs. 390ARs. 210BRs. 180CRs. 200DRs. 150Answer: B. Rs. 180 Read Explanation: old price = 7x increased price = 13x increase in price = 13x - 7x = 6x 13x = 390 ⇒ x = 390/13 = 30 6x = 6 × 30 = Rs. 180Read more in App