4. The average of 24 numbers is 32. If each number is tripled, then what would be the resultant average?
027
0 72
096
O 35
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According to the question first three numbers is increased by 2 = 3×2=+6
Remaining three numbers is decreased by 4 = (−4×3)=−12
difference '- 6' effect on 6 numbers = −6+6=−1
∴ Previous average = 32
New average = 32 - 1 = 31
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