Question

The average of five numbers is 34. Two of the numbers are the same, and the other three are 49, 25, and 42. Find the value of the two numbers missing numbers.

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Answer 1

Both numbers = 27

Explanation:

( x + x + 49 + 25 + 42)/ 5 = 34 Multiply both sides by 5

(2x + 49 + 25 + 42) = 34*5 = 170 Combine the left

(2x + 116) = 170 Remove the brackets.

2x + 116 = 170 Subtract 116 from both sides

2x = 170 - 116

2x = 54 Divide by 2

x = 54/2

x = 27

Check

27 + 27 + 49 + 25 + 42

170 / 5 = 34

It does check out.

27 is right.