Asked by sadath
                Fin the sum of odd number between 100&200
            
            
        Answers
                    Answered by
            Steve
            
    sum=0
for n=101 to 199 step 2 {
sum += n
}
or, by hand, pair them up:
101 + 199 = 300
103 + 197 = 300
...
how many such pairs are there?
Or, since the sum of the 1st n odd numbers is n^2,
100^2 - 50^2 = 7500
    
for n=101 to 199 step 2 {
sum += n
}
or, by hand, pair them up:
101 + 199 = 300
103 + 197 = 300
...
how many such pairs are there?
Or, since the sum of the 1st n odd numbers is n^2,
100^2 - 50^2 = 7500
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