Mathematics Questions

In a mixture of 40 liters, 10% is water. How many liters of water are there?

A man earns Rs. 40000 and spends Rs. 32000. What is his saving percentage?

The population of a city was 50000. It decreased by 5% due to an epidemic. Current population is:

Find x if 20% of x is equal to 40% of 10.

If a number is increased by 20% and then reduced by 20%, the resulting number is how much less than the original?

A student scored 60 out of 80 in math. What is his percentage?

If 70% of students in a school are boys and the number of girls is 504, find the number of boys.

A number is increased by 25%. By what percent should it be decreased to get back original number?

What is 40% of 15% of Rs. 600?

The price of an item decreased from Rs. 2500 to Rs. 2000. Find decrease percent.

What is 5% of 10% of 20% of 1000?

If 8% of x = 6% of y, then 20% of x = ?

A salary is increased by 10% and then decreased by 10%. If current salary is 9900, find original.

Find 25% of 25% of 100.

If the side of a square is increased by 10%, its area increases by:

Express 1/3 as a percentage correct to two decimal places.

If 15% of a number is subtracted from the number, the result is 170. Find the number.

A fruit seller has some oranges. He sells 40% and still has 420 oranges. Total oranges initially were:

What percent of a day is 6 hours?

If the radius of a circle is increased by 50%, find the percentage increase in its area.