Question : The average of 20 numbers is 36. If each number is increased by 4, then what will be the new average?
Option 1: 44
Option 2: 46
Option 3: 40
Option 4: 36
Correct Answer: 40
Solution :
The average of 20 numbers = 36
Sum of the numbers = 20 × 36 = 720
If each number is increased by 4, the number becomes 36 + 4 = 40
Sum of the numbers = 20 × 40 = 800
New average = $\frac{800}{20}= 40$
Hence, the correct answer is 40.
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