The average of 19 numbers is 48. The average of the first 7 numbers is 50.6 and that of the last 13 numbers is 47.6. If the 7th number is excluded, then what is the average of the remaining numbers (correct to one decimal place)?

The average of 8 numbers is 24. If one of the numbers is excluded, the average becomes 22. Find the excluded number.

The average of 7 numbers is 164. On removing a number, the average remains unchanged. Find out the number deleted.

The average of 9 numbers is 15. If the average of the first five numbers is 13 and the average of the last five numbers is 17, then what is the fifth number?

Out of six persons A, B, C, D, E and F, the average of first five numbers A, B, C, D and E is greater than the average of last five numbers B, C, D, E and F by 26. The difference between A and F is:

The average of 4 numbers is 67. If one number is removed then the average becomes 70. Find the number which was removed.

The average of the first and second number is 20 and the average of second and third number is 36. What is the difference between the third and first number?

The average of twelve numbers is 46. The average of the first four numbers is 43 and that of the last five numbers is 49.4. The 5th and the 6th number are respectively 4 and 6 more than the 7th number. What is the average of the 5th and 7th numbers?

Find the average of all odd numbers from 20 to 40.

If the average of a group of numbers is 45. If every terms of the group, 5 is added and then multiplied by 2.5 then the new average will be?

Find the average of all odd numbers from 20 to 40.

Find the average of all odd numbers from 20 to 40.

The average of 19 numbers is 48. The average of the first 7 numbers is 50.6 and that of the last 13 numbers is 47.6. If the 7th number is excluded, then what is the average of the remaining numbers (correct to one decimal place)?

The average of 29 observations is 40. If the average of the first 15 observations is 38, and that of the last 15 observations is 45, then the 15th observation is: 

The average of 7 numbers is 175. The average remains unchanged after removing one of them. Find out the number drawn.

The average of 6 numbers is 30. When one number is removed, the average becomes 24. Find the removed number.

The average of 8 numbers is 24. If one of the numbers is excluded, the average becomes 22. Find the excluded number.

The average of 29 observations is 40. If the average of the first 15 observations is 38, and that of the last 15 observations is 45, then the 15th observation is: 

The average of 9 numbers is 15. If the average of the first five numbers is 13 and the average of the last five numbers is 17, then what is the fifth number?

The average of n numbers is 36. If each of the 75% of the numbers is increased by 5 and each of the remaining numbers is decreased by 8, then the new average of the numbers is:

Which of the following statements(s) is/are correct?

I. The average of 24 numbers is 22. If the average of the first 9 numbers is 18, then the average of the remaining numbers will be 24.4.

II. Average of 149, 223, 520, 287 and 251 is 286.

The average of 27 numbers is 58. The average of the first 14 numbers is 66.6 and that of the last 14 numbers is 52.4. If the 14th number is excluded, then what is the average of the remaining numbers (correct to one decimal place)?

The average of 52 numbers is 48.5. The average of the first 22 numbers is 59.8 and that of the last 32 numbers is 41.7. If the 21st and 22nd numbers are excluded, then what is the average of the remaining numbers?

A is the average of 10 given numbers. B is the average after 2 of the numbers were replaced by 3 other different numbers. The average of the removed numbers is 48, and the average of the newly included numbers is 56. If A + B = 438, then the value of A - B is:

The average of 48 numbers is 78. If we subtract a number "X" from each number, then the average becomes 57. What is the value of X?

The average of 30 numbers is 36. If Z is subtracted from each of these 30 numbers, then the average becomes 28. What is the value of Z?

The mean of 5 numbers is 42. If one number is excluded, their mean becomes 33. The excluded number is -

If the average of a group of numbers is 45. If every terms of the group, 5 is added and then multiplied by 2.5 then the new average will be?

The average of a set of 11 numbers is 34.5. Two numbers equal to 42.35 and 46.15 respectively are added to the set. What is the new average?

The average of 17 numbers is 47. If each of the numbers is multiplied by 6, then find the new average.

The average of four numbers is 12 and the average of another three numbers is 16. The average of these seven numbers is what percent of the number 137?

The average of 11 numbers arranged in an order is 41. The average of the first five numbers is 18 and that of the last five numbers is 64. What is the sixth number?

The average of five integers is 48. The average of the first four integers is 50% of the 5th integer. The 5th integer is:

The average of 9 numbers is 30. The average of the first 5 numbers is 25 and that of the last 3 numbers is 35. What is the 6^th number?

The average of five numbers is 32. If one number is removed, then the average becomes 28. What is the removed number?

The average of twelve numbers is 46. The average of the first four numbers is 43 and that of the last five numbers is 49.4. The 5th and the 6th number are respectively 4 and 6 more than the 7th number. What is the average of the 5th and 7th numbers?

The average of 11 numbers is 7.5. What should be the 12th number added to them to make the average 8.5?

The average of 29 observations is 40. If the average of the first 15 observations is 38, and that of the last 15 observations is 45, then the 15th observation is: 

The average of 8 numbers is 24. If one of the numbers is excluded, the average becomes 22. Find the excluded number.

The average of 27 numbers is 58. The average of the first 14 numbers is 66.6 and that of the last 14 numbers is 52.4. If the 14th number is excluded, then what is the average of the remaining numbers (correct to one decimal place)?

The average of 9 numbers is 15. If the average of the first five numbers is 13 and the average of the last five numbers is 17, then what is the fifth number?

The average of 6 numbers is 30. When one number is removed, the average becomes 24. Find the removed number.

The average of five integers is 48. The average of the first four integers is 50% of the 5th integer. The 5th integer is:

Average of 12 numbers is 60. If 12 is subtracted from the first five numbers and 10 is added in the next seven numbers, then what will be the new average?

The average of 25 numbers is 18. The average of the first 12 of these numbers is 14 and that of the last 12 of these numbers is 17. The 13th number is:

The average of 48 numbers is 78. If we subtract a number "X" from each number, then the average becomes 57. What is the value of X?

The average of twelve numbers is 46. The average of the first four numbers is 43 and that of the last five numbers is 49.4. The 5th and the 6th numbers are respectively 4 and 6 more than the 7th number. What is the average of the 5th and 7th numbers?

The average of 11 numbers arranged in an order is 41. The average of the first five numbers is 18 and that of the last five numbers is 64. What is the sixth number?