CBSE Class 10 Answered
the arithmetic mean of 1, 2, 3, ......,n is -
(a)(n+1)/2
(b) (n-1)/2
(c)n/2
(d)n/2 +1
Asked by | 19 Nov, 2013, 10:20: PM
Expert Answer
Answered by Vimala Ramamurthy | 20 Nov, 2013, 09:08: AM
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