The mean of a set of seven numbers is...

The mean of a set of seven numbers is 81. If one of the numbers is discarded, the mean of the remaining numbers is 78. The value of discarded number is 98 (b) 99 (c) 100 (d) 101

Topper's Solved these Questions

LINES AND ANGLES
RD SHARMA ENGLISH|Exercise All Questions|183 Videos
NUMBER SYSTEM
RD SHARMA ENGLISH|Exercise All Questions|130 Videos

Similar Questions

Explore conceptually related problems

The average (arithemetic mean) of a set of seven numbers is 81. If one of the numbers is discarded, the average of the remaining number is 78. What is the value of the number that was discarded?

The mean of 6 numbers is 42. If one number is excluded, the mean of remaining numbers is 45. Find the excluded number.

The mean of 5 numbers is 18. If one number is excluded, the mean of remaining numbers becomes 16. Find the excluded number.

The mean of 9 numbers is 6. If one more number is added, the mean remains 6. Find the number that is added.

The arithmetic mean of a set of 50 numbers is 38. If two numbers of the set, namely 60 and 40 discarded, the arithmetic mean of the remaining set of numbers is

The mean of 9 numbers is 10. If one more number is added, the mean remains as 10. Find the number which is added.

The mean of 12 numbers is 10. If one more number is added, the mean remains unaltered. Find the number that is added.

Out of 25 numbers, the mean of 15 numbers is 36 and the mean of the remaining numbers is 26, find the mean of all the 25 numbers.

RD SHARMA ENGLISH-MEASURES OF CENTRAL TENDENCY-All Questions

If the difference of mode and median of a data is 24, then find the ...
Text Solution
|
If the median of scores x/2, x/3, x/4, x/5a n d x/6(w h e r e\ x &g...
Text Solution
|
If the mode of scores 3,\ 4,\ 3,\ 5,\ 4,\ 6,\ 6,\ x\ \ i s\ 4 , fin...
Text Solution
|
If the median of 20 ,\ 25 ,\ 28 ,\ x ,\ 33 ,\ 34\ i s\ 29 , find the...
Text Solution
|
For the set of numbers 5,6,6,6,7,7 and 12, find mode
Text Solution
|
Which one of the following is not a measure of central value: (a) Me...
Text Solution
|
The mean of n observations is xdot If k is added to each obse...
Text Solution
|
The mean of n observations is X dot If each observation is ...
Text Solution
|
The mean of a set of seven numbers is 81. If one of the numbers is ...
Text Solution
|
For which set of numbers do the mean, median and mode all have the s...
Text Solution
|
For the set of numbers 2, 2, 4, 5 and 12, find mode
Text Solution
|
If the arithmetic mean of 7,\ 5,\ 13 ,\ x and 9 is 10, then the va...
Text Solution
|
If the mean of five observations x ,\ x+2,\ x+4,\ x+6,\ x+8\ i s\ 1...
Text Solution
|
Mode is (a)least frequent value (b) middle most value (...
Text Solution
|
The following is the data of wages per day: 5, 4, 7, 5, 8, 8, 8, 5,...
Text Solution
|
The empirical relation between mean, mode and median is (a)Mod e...
Text Solution
|
The median of the following data: 0,\ 2,\ 2,\ 2,\ -3,\ 5,\ -1,\ 5,\ ...
Text Solution
|
The mean of a ,b ,c ,d and e is 28. If the mean of a ,c and e is 2...
Text Solution
|
The algebraic sum of the deviations of a set of n values from thei...
Text Solution
|
A ,\ B are two sets of values of x : A : 3,\ 7,, B : 12 ,\ 8 M e...
Text Solution
|