If, in a competitive exam, the marks obtained by Sam are 19% less than those of Peter, then the marks obtained by Peter are how much percentage more than the marks obtained by Sam? (Correct to two decimal places)

If the price of rice increases by 20% and a person reduces its consumption by 20%, by what percentage will his total expenditure on rice decrease?

A number is first increased by 10% and then decreased by 10%. The number so obtained is 80 less than the original number. The original number is

Dimensions of a cubical shape room are increased by 10%. What increase will be there in its floor area?

A’s and B’s salaries are respectively 40% and 70% rupees more than C’s salary. What is the ratio of B’s salary to A’s salary?

The price of a mobile phone was 18,000 last year. It has increased by 15$$\frac 34$$​% this year. What is the current price?

If the radius of the base of a right circular cylinder is decreased by 27% and its height is increased by 165%, then what is the percentage increase (closest integer) in its volume?​

The area of a triangle is constant. Find the percentage increase in its perpendicular height if the base of the triangle is decreased by 20%.

By how much is 65% of 65 greater than 2/5 of 25?

The length of a rectangle increases by 15%. Find the percentage decrease in the breadth in order to maintain the area constantly. (Rounded off to 2 decimal places)

The price of fuel decreases by 15%, 25% and 35% in three successive months, but increases by 40% in the fourth month. What is the percentage increase/decrease in the price of fuel in the fourth month as compared to its original price?