The average of 8 numbers is 44. If a constant ‘Y’ is added to each number, then average becomes 47. What is the value of ‘Y’?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 3.
| Understanding/Application |
| Average = Sum of all quantities/Total quantities |
|
ATQ - 8(44) + 8Y = 8(47) 352 + 8Y = 376 8Y = 24 Y = 3 |