Solution -
C.P of 9 mangoes = Rs. 1
C.P of 1 mango = Rs. 1/9
S.P of 6 mangoes = Rs. 1
S.P of 1 mango = Rs. 1/6
profit = S.P - C.P
Profit = 1/6 - 1/9
= (3 - 2)/18
= 1/18
Therefore,
The ratio of profit to the cost price = 1/18 : 1/9
= (1/18) / (1/9)
= 9 / 18
= 1 / 2
The ratio of profit to the cost price = 1 : 2
Hence,
The correct answer is option (c) 1/2.
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