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The marked price of a watch was Rs. 720/...

The marked price of a watch was Rs. 720/- A man bought the same for Rs. 550.80, after getting two successive discounts, the first at 10%. What was the second discount rate ?

A

0.12

B

0.18

C

0.15

D

0.14

Text Solution

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The correct Answer is:
C
`720 xx 90/100 xx ((100-x)/(100)) = 550.80`
` rArr 100-x = 55080 -: 648`
`rArr 100-x = 85`
` rArr x = 100 - 85 = 15%`
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