SSC CPO 2019 PYQ — Question 119

SSC CPO Tier I - 12th December 2019 - Shift 1 • Quantitative Aptitude • Q119

A is 40% more than B  and B is 60% less than C. If C is 60% more than D then which of the following is true?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e. B is 36% less than D

Application

Let D = 100x

C is 60% more than D

So, C = 100x + (100x × 60)/100 = 160x

B is 60% less than C

So, B = 160x - (160x × 60)/100 = 64x

A is 40% more than B

So, A = 64x - (64x × 40)/100 = 89.6x

Now consider option A : C is 60% more than B.

Difference between B and C = 160x – 64x = 96x

Percentage by which C is more than B =(96x/64x) 100 = 150%

So option A is wrong.

Now consider option B: B is 36% less than D

Difference between B and D= 100x – 64x = 36x

Percentage by which B is less than D = (36x/100) × 100 = 36

Which is a correct statement.