The product of the two numbers is 1500 and their HCF is 10. The number of such possible pairs is/are: 

By what number, is the number of accidents that occurred in April is greater than the average number of Accidents that occurred during the 6 months period?

Twenty five percent of Pranab’s annual salary is equal to eighty percent of Surya’s annual salary. Surya’s monthly salary is forty percent of Dheeru’ monthly salary. If Dhreeu’s annual salary is Rs 6 lacs, what is Pranab’s monthly salary? (At some places annual income and in some place monthly income are given)

Vivek and Raja had some books whose ratio was 7: 9 and similarly the ratio of books of Abhishek and Raja was 7: 15, then tell us what was the ratio of books of Vivek and Abhishek?

There are four numbers in a set. The mean of the three smallest numbers is 9, whereas the mean of the three largest ones is 11. What is the range of the data set? 

Find the mean of first Five Prime Numbers.

The ratio 5 : 4 expressed as a percent equals :