Rekha, Hema and Kajal bought the same washing machine at the same MRP from 3 different dealers. All the dealers offered 2 discounts and subsequent cash backs after discount. Rekha got discounts of 5 percent and cashback of 20 percent, Hema got 16 percent discount and cashback of 15 percent, Kajal got 15 percent discount and cashback of 12 percent. Find out who purchased the machine at maximum price?