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(3) What is the sum of the first 30 natural numbers ?(A) 464 (B)465 (C) 462(D) 461 |
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Answer» We know that Sum of first n natural numbers = n ( n + 1 )/2 Here , n = 30, S30 = [ 30 ( 30 + 1 ) ] /2 = ( 30 × 31 ) / 2 = 930 / 2 = 465 Therefore , Sum of the first 30 natural numbers = S30 = 465 Like my answer if you find it useful! |
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