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The average of 3, 5, 15 and my number is 40. what is my number.
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3 votes
The average of 3, 5, 15 and my number is 40. what is my number.

User Richard Pianka
by
4.8k points

1 Answer

5 votes

Answer:

137

Explanation:

(3 + 5 + 15 + x)/4 = 40

23 + x = 160

x = 137

User Urish
by
4.8k points
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