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The average of 8 numbers is 25. If two numbers, 40 and 50, are added, the new average is
A28
B29
C30
D27
Answer & Solution
Correct answer: B. 29
Old sum = 8 × 25 = 200. New sum = 200 + 40 + 50 = 290. New count = 10. New average = 290/10 = 29.
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