Question

if there is 20% increase in wealth of panditrav and then decrease of 20%, then what it is total increase or decrease percentage in the total wealth of panditrav? A) 18% B) 9% C) 4% D) 6%​

Answer 1

Let the original price of the tea be Rs.100.

⇒ The price of the tea is increased by 20%.

⇒ Increased price of the tea = 100+(

100

20

)=100+20=Rs120.

⇒ Increase in price = 120−100=Rs.20

⇒ Tea of cost Rs.20 is to decreased out of the increased cost of Rs.120.

⇒ Percentage decrease =

120

20

×100=

3

50

%.

Hence, the consumption of

3

50

% of tea is to be decreased so that the expenditure on tea remains the same.