If the population of a town is 64000 and its annual increase is 10%, then its population at the end of 3 years will be :

What is 28% of 36% of $$\frac{5}{7}$$th of 5000 ?

If two numbers are respectively 30% and 40% more than a third number, what percent is the first of the second?

What will come in the place of (?) in the expression below :<br> x% of y is y% of (?)

25% of 120 + 40% of 380 = ? of 637

A number if reduced by 25% becomes 225. By what percent should it be increased so that it becomes 375 ?

What is the percentage change in the result when we add 50 to a certain number x, instead of subtracting 50 from the sam…

The value of which of the following fractions is less than twenty percent ?