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105
2
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Find the value of the series

 

1+4+2+8+3+12+4+16+...+ 24+96+25+100.

 May 16, 2022
 #1
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0

The sum is 1800.

 May 16, 2022
 #2
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Sum(1, 4, 2, 8, 3, 12, 4, 16, 5, 20, 6, 24, 7, 28, 8, 32, 9, 36, 10, 40, 11, 44, 12, 48, 13, 52, 14, 56, 15, 60, 16, 64, 17, 68, 18, 72, 19, 76, 20, 80, 21, 84, 22, 88, 23, 92, 24, 96, 25, 100)==1,625

 

The ODD terms are: 1, 2, 3, 4, 5,........25

The EVEN terms are: 4, 8, 12, 16,.......100 [Or multiples of 4]

 May 16, 2022

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