The average of nine numbers in M and the average of three of these is P. If the average of remaining numbers is N, then

If 8, X and 50 are in continued proportion, then the value of x is

The mode and median of the data 8, 6, 8, 7, 8, 6, 8, 7, 6 is

What will come in place of the question mark (?) in each of the following series?

15     18    16   19     17    20    ?

What is the Area of the given Field book.

Directions : What should come in place of the question mark (?) in the following number series? 

7 17 54 ? 1098 6591 

In a college the number of students studying Arts, Commerce and Science are in the ratio of 3:5:8 respectively. If the number of students studying Arts, Commerce and Science is increased by 20%, 40%, and 25% respectively, what will be the new ratio of students in Arts, Commerce and Science respectively?

The price of JK magazine is ₹ 90. There is a 30 % discount on becoming a customer of 45 magazines. While another discount of 25 % is also given to the customer of 26 magazines. Find the difference of the price of a magazine for a customer of 45 magazines and a customer of 26 magazines.