The average of 4 numbers is 34. The sum of the first 3 numbers is 108. What is the fourth number?

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Worked solution

10

1. Find the total sum of the 4 numbers

Total sum=4×34=136\text{Total sum} = 4 \times 34 = 136

2. Find the fourth number

Fourth number=136−108=28\text{Fourth number} = 136 - 108 = 28

Answer

2828 (option 1)

AI analysis — may contain mistakes.

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