Home
Class 14
MATHS
The average of 17 numbersis 29. The aver...

The average of 17 numbersis 29. The averageoffirst 9 numbers is 31 and the averageof the last 9 numbers is 27. If 9th number is excluded, then what is the average of the remaining numbers?

A

31

B

`31.6`

C

`29.5`

D

29

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

The average of 15 numbers is 56. The average of first 8 numbers is 54.4 and that of last 8 numbers is 56.6. If 8^(th) number is excluded then what is the average of the remaining numbers? (correct to one decimal place)

The average of 21 number is 66. The average of the first 9 numbers is 63.7 and that of the last 13 number is 69.9 . If the 9^(th) number is excluded, then what is the average of the remaining numbers?

The average of 31 numbers is 59. The average of the first 11 numbers is 53.9 and that of the last 21 numbers is 62.1. lf the 11th number is excluded, then what is the average of the remaining numbers?

The average of 61 numbers is 54 .The average of first 31 numbers is 50.6 and that of last 31 numbers is 60.4 . If the 31^(st) number is excluded ,then what is the average of the remaining numbers ?

The average of 33 numbers is 74. The average of the first 17 numbers is 72.8 and that of the last 17 numbers is 77.2. If the 17th number is excluded, then what will be the average of the remaining numbers (correct to one decimal place)? 33 संख्याओं का औसत 74 है | पहली 17 संख्याओं का औसत 72.8 है तथा अंतिम 17 संख्याओं का औसत 77.2 है | यदि 17वीं संख्या हटा दी जाए, तो शेष संख्याओं का औसत कया होगा ? ( एक दशमलव स्थान तक )

The average of 9 numbers is 18. If the average of first five numbers is 19 and the average of last 5 numbers is 17, find the 5th number.

The average of 41 numbers is 63. The average of first 21 number is 61.5 and that of last 21 numbers is 65.5. if 21^(St) number is excluded then the average of remaining numbers is:

The average of 40 numbers is 36. The average of the first 25 numbers is 31 and the average of last 16 numbers is 43. Find the 25^(th) number