Lily226 Lily226

15-01-2017
Mathematics

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The sum of 3 consecutive odd numbers is 69. What is the third number in the sequence

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doodle10 doodle10

15-01-2017

The three consecutive odd numbers are 21, 23, 25 so the third number in the sequence is 25

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sabidamour sabidamour

15-01-2017

x an odd number
x+x+2+x+4=69
3x+6=69
3x=63
x=21
so the third number is 25

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