If [x] denotes greatest integer less than equal to x,the value of ∑[log2n] ,n ranging from 1 to 1024 is
a)2048 b)8204 c)1024 d)10120

• ans 8204
  if n=1 then [1]=0
  n=2 then [2]=1
  n=3 , [3]=1
  n=4, [4]=2
  .
  .
  .
  n=8, [8]=3
  like that we get
  1*0+2*1+4*2+8*3+16*4+32*5+64*6+128*7+256*8+512*9+1*10=8204
  ans is 8204
  
• 9 years agoHelpfull: Yes(8) No(1)
• @Narasapu Hari prasad Can u plz explain in detail!..
• 9 years agoHelpfull: Yes(1) No(0)
• 22)If the figure shows a 4 by 4 grid of points .Each point is one unit from its nearest horizontal and vertical neighbor. Using pairs of these points as end points,what is the greatest number of segments that can be drawn so that number 2 segments are of same length
  . . . .
  . . . .
  . . . .
  a)8 b)12 c)6 d)9
  
• 9 years agoHelpfull: Yes(0) No(0)
• @hari can you can explain in details
• 9 years agoHelpfull: Yes(0) No(0)