SSC CGL 2022 PYQ — Question 66

SSC CGL - 02 Dec 2022 - Shift 3 • Quantitative Aptitude • Q66

The price of some wooden furniture increases by 65% when it passes through three hands. If the first and second sellers made a profit of 20% and 25%, respectively, then find the profit percentage of the third seller

Show answer & explanation

Correct answer: A

Explanation

The correct answer is Option 1 i.e. 10%.

Given:

Total profit = 65%

Profit by first seller and second seller are 20% and 25%

Formula used:

Successive profit = P1 + P2 + (P1 × P2)/100

Calculation:

Effective profit % of 1st and 2nd profit = 20 + 25 + (20 × 25)/100

⇒ 45 + 500/100

⇒ 45 + 5 = 50%

Let the 3rd profit% be x

So, 50 + x + 50x/100 = 65

⇒ 50 + x + x/2 = 65

⇒ (100 + 2x + x)/2 = 65

⇒ 100 + 3x = 130

⇒ 3x = 30

⇒ x = 10

Hence, the third profit % = 10%