The average of five numbers is 206. The average of two of them is 205. The average of another two of those numbers is 207.5. How many numbers can be accurately identified with this information?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. One.
Sum of 5 numbers = 1030
Sum of 2 numbers = 410
Sum of another 2 = 415
Fifth number = 1030 - 410 - 415 = 205
1 number can be identified.