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
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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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