The sales of an article increase by 50% every week. What are the sales in the third week, if the difference between the sales in the third week and the second week is 600?

Question

Question

This question was previously asked in

HPCL Engineer Electrical 01 Nov 2022 Official Paper

Answer 1

Given:

The sales of an article increase by 50% every week.

The difference between the sales in the third week and the second week is 600.

Concept used:

Incremented/Reduced value = Initial value (1 ± change%)

Calculation:

Let the sales of the articles be N in the first week.

Sales in the second week = N + N × 50% = 1.5N

Sales in the third week = 1.5N + 1.5N × 50% = 2.25N

According to the question,

2.25N - 1.5N = 600

⇒ 0.75N = 600

⇒ N = 600/0.75

⇒ N = 800

Now, the sales in the third week = 2.25 × 800 = 1800

∴ The sales in the third week are 1800.