Mathematics Past Questions and Answers

what is the mean deviation of 2,4,4,7,8

The range of data k+2,k-3,k+4,k-2, k, k-5,k+3,k-1 and k+6 is

musa borrow #10 at 2% per month simple interest and pays #8 after 4 month, how much does he still owe?

A dealer increased the price of an item by 20%, then increased the price of the same item by 30%. If x is the original price, what is the price after the two increment?

Two dice are thrown. What is the probability he that the sum of the two number obtained greater than 10?