A number reduced by 25% becomes 225. What percent should it be increased so that it becomes 390? `25 %` b. `30 %` c. `35 %` d. `45 %`

Two numbers are respectively 20% and 25% of a third number. What percent is the first of the second?

A number is increased by 20% and then again by 20%. By what percent should the increased number be reduced so as to get back the original number? 19(11)/(31)% b.30(5)/(9)% c.40% d.44%

A person's salary is decreased by steps of 20%,15% and 10% .Approximately by what percent should the reduced salary be increased so as to get back the original salary? 39% b.44% c.56% d.63%

A number is incresed by 25% and then decreased by 20%. The result is what percent of original number?