A shopkeeper marks the price of cold cream at ₹ 80. After allowing a discount of 10% he still gains 20% on the cost price. Find the cost price.
₹ 60
If a discount of 10% is given on the MP of ₹ 80 , Then SP = ₹ 72
If SP = ₹ 72
Let CP be ₹ x
x + 20x100 = 72
120 x = 7200
x = 7200120 = ₹ 60