A toy is sold for Rs. 220 What was the cost if the rate of profit was 10% of the cost?

A) 198

B) 202

C) 200

D) 201

The formula:

Cost Price = (“Sell Price” x 100) / (100 + “Profit Percentage”)

Plugging in the numbers:

CP = (220 x 100) / (100+10) = 200