The mean of nine numbers is 77. If one more number is added to it then the mean increases by 5. Find the number added in the data.

Choose the correct atternative answer for each of the following question: The mean of 10 numbers is 45. If one more is added to it the mean increases by 2. Find the number.

The mean of eleven number is 47. If a number is added then the mean is increased by 2. The new number is…………….

The mean of eight numbers is 35.If a number is excluded then the mean is reduced by 3.Find the excluded number.

The mean of five numbers is 80, out of which mean of 4 numbers is 46. find the 5th number

The ratio of two numbers is 5:7 .If 40 is added in each number,then the ratio becomes 25:31 .Find the number.

The sum of three numbers is 2. If twice the second number is added to the sum of first and third number, we get 1. On adding five times the first number to the sum of second and third we get 6. Find the three numbers by using matrices

The sum of two numbers is 7 and their difference is 5. Find the numbers.