30% apples out of 450 are rotten, How many apples are in good condition ?

Peter could save 10% of his income. But two years later when his income is increased by 20%, he could save the same amou…

The difference between 38% of a number and 24% of the same number is Rs. 135.10. What is 40% of that number ?

If 90% of A = 30% of B and B = 2x% of A, then the value of x is :

One bacterium splits into eight bacteria of the next generation. But due to environment, only 50% of one generation can …

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

Solve this : 32% of 825 + 25% of 1440 = 1025 - (?)

A city has a population of 300000 out of which 180000 are males. 50% of the population is literate. If 70% of the males …