find the mean of first 50 odd numbers
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number of series = 1,3,5,7,9..........99
1st term a=1
CD d= 2
total no of n terms = 50
apply input parameters
sum = n/2× (a+Tn)
50/2×(1+99)
25 ×100
hence, 1 + 3 + 5+ 7 ........99 is 2500
1st term a=1
CD d= 2
total no of n terms = 50
apply input parameters
sum = n/2× (a+Tn)
50/2×(1+99)
25 ×100
hence, 1 + 3 + 5+ 7 ........99 is 2500
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