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SSC MTS 2024 PYQ — Question 7

SSC MTS - 08/10/2024 - (12:30 PM - 2:30 PM) • Quantitative Aptitude • Q7

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A shopkeeper declares the following three schemes of discounts. Which scheme is most beneficial to a customer?

A. Buy 25 items and get 30 of the same items

B. Two successive discounts of 12% and 18%

C. Two successive equal discounts of 15%

Show answer & explanation

Correct answer: C

Explanation

The correct answer is Option 3 i.e. Only A.

A. Buy 25, get 30

Total items = 25 + 30 = 55

Pay for 25 → Effective discount = 3055×100{30\over55}\times100 = 54.55%

B. Successive discounts of 12% and 18%

Net discount = 12 + 18 - 12×1810012\times18\over100 = 30 - 2.16 = 27.84%

C. Two successive 15% discounts

Net discount = 15 + 15 - 15×1510015\times15\over100 = 30 - 2.25 = 27.75%.

Most beneficial = Scheme A