If the average of six numbers is 10 and each number is multiplied by 3, what is the new average?
ASF Assistant Director Past Papers / All — Multiple-choice practice
- A. 30
- B. 60
- C. 13
- D. 10
Correct answer
30
Explanation
Explanation We are given: Average of 6 numbers = 10 So, total sum = 10 × 6 = 60 If each number is multiplied by 3, then the new total becomes: New total = 60 × 3 = 180 Number of values = still 6 New average = 180 ÷ 6 = 30
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