SSC CGL 2019 PYQ — Question 60

SSC CGL - 6th June 2019 - Shift 2 • Quantitative Aptitude • Q60

When the price of an item was reduced by 20%, then its sale increased by x%. If there is an increase of 60% in the receipt of the revenue, then the value of x is:

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Correct answer: D

Explanation

Correct Answer is option 4 i.e. 100

Concept

Understanding

Application

 

 

 

 

Revenue = price × sale

 

Price of an item was first reduced by 20%, then its sale increased by x%.

There is an increase of 60% in the receipt of the revenue.

160/100 = 80/100 × (100 + x)/100

⇒ 1.6 = 0.8 × (1 + 0.01x)

⇒ 2 = 1 + 0.01x

⇒ 0.01x = 1

⇒ x = 100%

So,

Increase in sale is 100%