A candidate who gets 20% marks in a examination fails by 30 marks but another candidate who gets 32% gets 42 marks more …

Nandini Basu bought an article for Rs. 5844. She gave Rs. 156 to a mechanic to remove its defect. She then sold it for R…

Due to fall of 10% in the rate of sugar, 500 gm more sugar can be purchased for Rs. 140. Find the original rate?

If a number is reduced by 40% it becomes two-thirds of another number. What is the ratio of the first number to the seco…

If x% of 500 = y% of 300 and x% of y% of 200 = 60, then x = ?

The cost of packaging of the mangoes is 40% the cost of fresh mangoes themselves. The cost of mangoes increased by 30% b…

What percent of Rs. 2650 is Rs. 1987.50 ?

The current birth rate per thousand is 32, whereas the corresponding death rate is 11 per thousand. The net growth rate …