Which one of the following numbers can be remove from the set S = { 0, 2, 4, 5, 9} without changing the average of the elements of the set S ?
Created: 6 years ago |
Updated: 2 months ago
best des
he average of the elements in the original set S is:
(0 + 2 + 4 + 5 + 9)/5 = 20/5 = 4
If we remove an element that equals the average, then the average of the new set will remain unchanged. The new set after removing 4 is {0, 2, 5, 9}.
The average of the elements is, (0 + 2 + 5 + 9)/4 = 16/4 = 4
If we remove an element that equals the average, then the average of the new set will remain unchanged. The new set after removing 4 is {0, 2, 5, 9}.
The average of the elements is, (0 + 2 + 5 + 9)/4 = 16/4 = 4
Md Azizur Rahman
Founder of Satt
Average of five value: (0+2+4+5+9) / 5 = 20 / 5 = 4
something / 4 = 4
=> something = 16
now, check the sum of which values gives 16
and this are: 0+2+5+9 (Remember: only this four value gives: 16)
so, eliminated value = 4
Related Question
View More
Created: 6 years ago |
Updated: 1 month ago
Created: 6 years ago |
Updated: 5 days ago
Created: 6 years ago |
Updated: 5 days ago
Created: 6 years ago |
Updated: 2 months ago
Promotion
Download Our Mobile Apps
