11.
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On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is:
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A.
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Rs. 45
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B.
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Rs. 50
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C.
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Rs. 55
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D.
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Rs. 60
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Answer: Option D
Explanation:
(C.P. of 17 balls) - (S.P. of 17 balls) = (C.P. of 5 balls)
C.P. of 12 balls = S.P. of 17 balls = Rs.720.
C.P. of 1 ball = Rs.
|
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720
|
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= Rs. 60.
|
12
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