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The List Price of a Watch is Rs.4000. It is Available Either at 25% Flat Discount Or at Successive Discounts of 15% and 12%. Calculate the Better Offer and the Amount Paid in the Second Offer. - Mathematics

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Question

The list price of a watch is Rs.4000. It is available either at 25% flat discount or at successive discounts of 15% and 12%. Calculate the better offer and the amount paid in the second offer.

Sum
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Solution

List the price = Rs.4000
Case 1 :
S.P. = `(1 - "d"/100)` of M.P.(List price)

⇒ S.P. = `(1 - 25/100) xx 4000`

⇒ S.P. = `(75)/(100) xx 4000`
⇒ S.P. = Rs.3000
Case 2 :
S.P. = `(1 - "d"_1/100)(1 - "d"_2/100)` of M.P.

S.P. = `(1 -  15/100)(1 -  12/100) xx 4000`

⇒ S.P. = `(85)/(100) xx (88)/(100) xx 4000`
⇒ S.P. = Rs.2992
Since in the second case the S.P. is lesser, so the second offer is better.
The amount paid in the second offer is Rs.2292.

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Chapter 2: Profit , Loss and Discount - Exercise 2.3

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Frank Mathematics [English] Class 9 ICSE
Chapter 2 Profit , Loss and Discount
Exercise 2.3 | Q 14
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