Question

Five numbers have an average of 16. If the first four numbers have a sum of 68, what is the fifth number

Answer 1

Find sum of 5 numbers:

Average of 5 numbers = 16

Sum of 5 numbers = 16 x 5 = 80

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Sum of 4 numbers = 68 (Given)

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Find 5th number:

5th number = 80 - 68 = 12

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Answer: The fifth number is 12