If = n(n + 1)/2 for all integers n, and m = , then =

Question

If =\frac{n(n+1)}{2} for all integers n, and m=<5> , then = (A) 120 (B) 225 (C) 240 (D) 420 (E) 840

Shubhi09 · Answer

If m=. <5>, then m= 15 So =<15>= 15x16/2=120 Posted from my mobile device

Kinshook · Answer

Asked: If =\frac{n(n+1)}{2} for all integers n, and m=<5> , then = = n(n+1)/2 m = <5> = 5*6/2 = 15 = <15> = 15*16/2 = 120 IMO A

BrushMyQuant · Answer

Given that =\frac{n(n+1)}{2} for all integers n, and m=<5> and we need to find the value of To find <5> we need to compare what is inside < > in <5> and => We need to substitute n with 5 in =\frac{n(n+1)}{2} to get the value of <5> => <5> = \frac{5(5+1)}{2} = \frac{5*6}{2} = 5*3 = 15 => m = <5> = 15 => = <15> = \frac{15(15+1)}{2} = \frac{15*16}{2} = 15*8 = 120 So, Answer will be A Hope it helps! Watch the following video to learn the Basics of Functions and Custom Characters https://www.youtube.com/watch?v=b7JoMX0gk8M

If <n> = n(n + 1)/2 for all integers n, and m = <5>, then <m> =

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