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Option 4 : 85.50
Given:
A sports store offers a 10% discount on its goods.
The store offers a further discount of 5% on the reduced price to those customers who pay by credit cards.
Concept used:
Successive discount percentage = x + y – xy/100
Calculation:
Marked price of a goods = Rs. 100
According to the question,
Successive discount percentage = x + y – xy/100
⇒ 10 + 5 – (10 × 5)/100
⇒ 15 – 0.5
⇒ 14.5%
The amount paid by the customer
⇒ 100(100 – 14.5)/100
⇒ Rs. 85.5
∴ The amount (in Rs.) to be paid by the customer is 85.5.
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