Question

Average of nine consecutive numbers is 56. Find the sum

Q: Answer-Average of nine consecutive numbers is 56. Find the sum of smallest and largest number.

Let the numbers be a - 4, a - 3, a - 2, a - 1, a, a 1, a 2, a 3 and a 4. So, a - 4 a - 3 a - 2 a - 1 a a 1 a 2 a 3 a 4 9 56 Or, 9a9 56 Or, a 56 Required sum a - 4 a 4 2a 2 56 112

of smallest and largest number.

A 108

B 110

C 112

D 114

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IB ACIO Executive

Average of nine consecutive numbers is 56. Find the sum

Solution

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