CBSE Class 10 Answered
Find the sum of all even numbers from 1to350 (arithmatic progreession)
Asked by suryakantnurewar1975 | 09 Aug, 2019, 14:49: PM
2, 4, 6, 8, 10,.....350
t1 = a = 2 and d = 2
tn = 350
a + (n - 1)d = 350
2 + (n - 1)2 = 350
1 + n - 1 = 175
n = 175
S175 = 175/2 (2 + 350) = 30800
Answered by Sneha shidid | 09 Aug, 2019, 17:12: PM
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