Discussion :: Numbers
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(51+ 52 + 53 + ... + 100) = ?
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Answer : Option D
Explanation :
This is an A.P. in which a = 51, l = 100 and n = 50.
Sum =\(\frac { n} { 2 }(a+1) \)= \(\frac {50 } { 2 } \)x (51 + 100) = (25 x 151) = 3775
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