SSC CHSL 2021 PYQ — Question 75

SSC CHSL - 16 April 2021 - Shift 1 • Quantitative Aptitude • Q75

What is a single discount (to the nearest whole number) equivalent to the successive discounts of 10%, 17% and 25%?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e. 44%

Concept Used:

Single discount = X+Y−XY100X + Y - {XY \over 100}

Where X = first discount

Y = second discount

Explanation:

According to the given question,

X = 10%, Y = 17%

Singlr discount = 10+17−10×1710010 + 17 - {10 \times 17 \over 100} = 27 - 1.7 = 25.3

Again, X = 25.3% and Y = 25%

Single discount = 25.3+25−25.3×2510025.3 + 25 - {25.3 \times 25 \over 100}= 43.97 ≈ 44%

Hence the required answer is 44%.