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20-09-2019
Mathematics

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The sum of three consecutive counting numbers is 15 more than the greatest
of them. What is the greatest of the three numbers?

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24-09-2019

Answer:

9

Step-by-step explanation:

x+x+1+x+2 = 15+x+2

3x+3=x+17

3x=x+14

2x=14

x=7

7+8+9=24

9+15 = 24

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