Christy donated 10% of his income to an orphanage and deposited 20% of the remainder in his bank. If he has now Rs. 7200…

30% of a number when subtracted from 91, gives the number itself. Find the number.

In a factory, the production of cycles rose to 48400 from 40000 in 2 years. The rate of growth per annum is ?

The price of an article was first increased by 10% and then again by 20%. If the last increased price was Rs. 33, the or…

5 out of 2250 parts of earth is sulphur. What is the percentage of sulphur in earth ?

The ratio of the number of boys to that of girls in a school is 4 : 1. If 75% of boys and 70% of the girls are scholarsh…

When income tax is 3 paise in a rupee, a person's net income is Rs. 237650. What will it be when the income tax is raise…

If x, y, z are three positive integers such that x is greater then y and y is greater than z, then which of the followin…