Question

The price of a car is increased by 25%, by how much percent, must the new price of this car be decreased to restore its original price ?
A) 20%
B) 24%
C) 21%
D) 25%

Answer 1

Let marked price = Rs. 100. 
Then, C.P. = RS. 54, 
S.P. = Rs. 85
Gain % = 31/64 x 100 = 48.4%.

Answer 2

hi

here is your answer

The price of onions increases by 25%, by what percent should a housewife reduces the consumption so that expenditure on onions can be same as before?

Let the price before increase be 100

Increased price =25percent of 100

25/100*100+100=125

When the price is increased to 125 she has to reduce 25

When the price is increased to 1 she has to reduce 25/125

Rate by which consumption decreases=25/125*100

=20 percent

hope it helps

plz mark brainliest