29) On selling 17 balls at 720, there is a loss equal to the cost price of 5 bal The cost price of a ball is:
Answers
Before proceeding with the question, we must know the formula that will be required to solve this question.
If it is given that a product is sold at a loss, then this loss can be found by subtracting the selling price of the product from the cost price of the product . . . . . . . . . (1).
In the question, it is given that on selling 17 balls at Rs 720, there is a loss that is equal to the cost price of 5 balls. We are required to find the cost price of a single ball. Let us assume that the cost price of a single ball is x. So, the cost price of the 17 balls will be 17x. Since the selling price is Rs 720, using formula (1), the loss is equal to,
17x – 720
It is given in the question that this loss is equal to the cost price of 5 balls i.e. 5x. So, we can say,
17x – 720 = 5x
⇒ 12x = 720
⇒ x = 60
Hence, the cost price of a single ball is Rs 60
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