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Cost of packing of mangoes is 40% cost...

Cost of packing of mangoes is` 40%` cost of fresh mangoes. Price of mangoes is increased by `30 % ` but the cost of packing of mangoes is decreased by `50%` . If cost of packed mangoes is equal to sum of cost of fresh mangoes and packing of mangoes then, find what is the percentage change in the cost of packed mangoes.

A

`14.17%`

B

`7.14%`

C

`6.66%`

D

none of these

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The correct Answer is:
B
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