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A person wanted to buy some chairs whose...

A person wanted to buy some chairs whose cost was Rs.300 each. Seller offer him a discount such that after buying 15 chairs. the person have to pay the cost of 12 chairs and rest 3 chairs are at Rs.90 each. Find the discount percentage

A

`5%`

B

`20%`

C

`14%`

D

`10%`

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The correct Answer is:
A
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