The difference between the value of a number increased by 25% and the value of the original number decreased by 30% is 22. What is the original number?

The difference between 35% and 25% of a number is 120 then find the number

A number is decreased first by 30% and then it is again decreased by 30%. What is the percentage change in the number?

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

The difference between the 38% of a number and 22% of that number is 3200. What is the 15 1/2% of that number ?

30% of a number is 225. Find the number.

In a school the number of boys and girls are in the ratio of 4:7. If the number of boys are increased by 25% and the number of girls are increased by 15%. What will be the new ratio of number of boys to that of girls?