Correct Answer - Option 2 : 70
Given:
The average of 12 numbers = 35
Formula used:
Average = Sum of values/number of values
Calculation:
The sum of 12 numbers
⇒ 35 × 12
⇒ 420
Each number multiplied by 2
The sum of numbers multiplied by 2
⇒ 420 × 2
⇒ 840
The New average of 12 numbers
⇒ 840/12
⇒ 70
∴ The required average is 70.