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SSC CHSL 2022 PYQ — Question 55

SSC CHSL - 27 May 2022 - Shift 3 • Quantitative Aptitude • Q55

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The difference between a discount of 35% on ₹8,000 and two successive discounts of 20% and 15% on the same amount is:

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Correct answer: A

Explanation

The correct answer is option 1 i.e. ₹240

According to the first condition,

⇒ S.P1 = [(100 - 35)/100] × 8000

⇒ S.P1 = 65/100 × 8000

⇒ S.P1  = 0.65 × 8000 = Rs. 5200

According to the second condition, 

Equivalent discount = 20 + 15 - (20 × 15/100)

Equivalent discount = (35 - 3)%

Equivalent discount = 32%

⇒ S.P2 = [(100 - 32)/100] × 8000

⇒ S.P2 = [68/100] × 8000

⇒ S.P2 = 0.68 × 8000 = Rs. 5440

Now the difference between the First condition and second condition = Rs. 5440 - Rs. 5200 = Rs. 240