Kiran marks the sari at Rs X He will discount it 10% Therefore he will be paid 100%-10% or 90% of x, which is 0.9x He wants to gain Rs 0.20(3000) (Gain) = (Money he will be paid) - Cost 0.20(3000) = 0.9x - 3000 600 = 0.9x - 3000 3600 = 0.9x= x 4000 = x Kiran should mark the sari Rs 4000 Edwin