The average of six numbers N1, N2, N3, N4, N5 and N6 is A. 5 is subtracted from each number. What is the new average?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. A - 5
Trick - If A is the average of a given set and X is subtracted from all numbers of the set , then the new aveage will become A - X
Hence the answer is (A - 5)