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If I have 3 in the first group and you add 2 more each group how many will be in group 100

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2 Answers

you begin with 3 and add 2 ninety-nine times
3+(99*2)=3+198=201
G(1) = 3
 
G(2) = 3 + 2(1)
 
G(3) = 3 + 2(2)
 
G(4) = 3 + 2(3)
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G(n) = 3 + 2(n-1)
 
hence,
 
G(100) = 3 + 2(100-1) = 201