Theprice ofpetrol is increased by 28 A person wants to increase his expenditure by 22 only By approx...........

Quantitative Aptitude (CGL) Percentage

Theprice ofpetrol is increased by 28%. A person wants to increase his expenditure by 22% only. By approximately what percent

should he decrease his consumption?

This questions was previously asked in

SSC CGL 13 June 2019 Shift-1

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5.3%

4.7%

4.9%

5.1%

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Explanation:

Expenditure = Price x Consumption
Initially , let e be the expenditure , p be price and c be the consumption.
e = p x c
Now , p is increased by 28% and expenditure can only be increased by 22 %. Let c' be the new consumption.
1.22 e =1.28 p x c'
c' = 95.31%
So , consumption should be decreased by 4.68%.
So , the answer would be option b)4.7%.

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