4. A shopkeeper gives successive discounts on flower bouquets of 10% and 12.5% respectively. What is the overall discount percentage? A) 28.74% b) 21.25% c) 30.84% d) 28.68% e) 27.25%
Answers
Answer:
Ist discount=10%
2nd. ..90x12.5/100_=11.25
overall disc-21.25%
Step-by-step explanation:

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A shopkeeper gives two successive discounts on an article marked ₹ 450. The first discount given is 10 percent. If the customer pays ₹ 344.25 for the article, the second discount given is
14 %
10 %
12 %
15 %
Correct Option: D
Let the second discount be D2 %.
According to the question,
344.25 = 450 ×100 − 10×100 − D2100100
∴ 100 − D2 =344.25 × 100 × 100450 × 90
∴ 100 – D2 = 85
∴ D2 = 100 – 85 = 15%.
Alternate method to solve this question :
Here, M.P. = Rs. 450, S.P. = Rs. 344.25, D1 = 10%, D2= ?
S.P. = M.P.100 − D1100 − D2100100
344.25 = 450 ×100 − 10100 − D2100100
3442500= (100 − D2)450 × 90
34425= (100 − D2)45 × 9
3825= (100 − D2)45 × 1
425= (100 − D2)5 × 1
⇒ 85 = 100 – D2
⇒ D2 = 15 %
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