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28-10-2018
Mathematics

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A pattern starts with 1. The second number is a 9. The third is a 17. Fourth is a 25 and fifth is 33. If you double the 15th number in the pattern,will the result be even or odd

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wegnerkolmp2741o wegnerkolmp2741o

28-10-2018

the number number will be even

Common difference is 8

an = a1 + d(n-1)

a15 = 1 + 8(15-1)

a15 = 1+ 8*14

a15 = 1 +112

a15 =113

double it 226

even number

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