The price of electricity has been increased b | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Let the initial price of electricity be $100$ and initial consumption be $100$ units.Initial expenditure = $100 	imes 100 = 10000$.New price of e

Vedclass · Accepted Answer

$20$

Vedclass · Answer

(C) Let the initial price of electricity be $100$ and initial consumption be $100$ units.Initial expenditure = $100 	imes 100 = 10000$.New price of electricity = $100 + 25 = 125$.Let the new consumption be $x$ units.Since the expenditure remains the same,$125 	imes x = 10000$.$x = \frac{10000}{125} = 80$ units.Reduction in consumption = $100 - 80 = 20$ units.Percentage reduction = $\frac{20}{100} 	imes 100 = 20 \%$.

The price of electricity has been increased by $25 \%$. If a person wants to keep the expenditure same,then the percentage reduction in use of electricity should be: (in $\%$)

Similar Questions

$15 \%$ of $10 \%$ of $20 \%$ of $1000$ is?

$23 \%$ of $8040 + 42 \%$ of $545 = ? \%$ of $3000$

$A$ person's salary has increased from $Rs. 7200$ to $Rs. 8100$. What is the percentage increase in his salary (in $\%$)?

$0.025$ in terms of rate per cent is:

The price of an article is Rs. $100$. Its price is increased by $10 \%$,and then again its price is increased by $10 \%$. What is the total increase in the price?

Vedclass Test Series

Exam Paper Generator

Online Exam Module