the average of 11 numbers is 60.if 11 is added to each number.what be the new average?
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Answer:71 will be the new average
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Step-by-step explanation:
71
Step-by-step explanation:
Let, the sum of 11 number is X
∴ According to the question,
=> X = 60 × 11 = 660
∴ After adding 11 to all the 11 numbers , the sum of the 11 numbers will be increased by = 11 × 11 = 121
∴ The sum of the new 11 numbers will be = (660 + 121) = 781
∴ The new average of the 11 numbers will be = = 71
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