If x = 63% of y, then y<sup>2</sup> is approximately what percent of x<sup>2</sup> ?

When water is changed into ice, its volume increases by 9%. If ice change into water, the percentage decrease in volume …

In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the tota…

Two numbers are respectively 20% and 50% of a third number. What per cent is the first number of second?

Twelve percent of Kaushal's monthly salary is equal to sixteen percent of Nandini's monthly salary. Sanal's monthly sala…

31% of employees pay tax in the year 2008. Non-tax paying employees are 20700. The total number of employees is :

By how much percent must a motorist increase his speed in order of reduce by 20%, the time taken to cover a certain dist…

In an examination, 1100 boys and 900 girls appeared, 50% of the boys and 40% of the girls passed the examination. The pe…