p be a no. in base N system whose all digits are 1. converting p in decimal we get z. the possible value of z is(are)?
a.21
b.12

• both a and b
  
  (111) = 16+4+ 1 = (21)
  4 10
  
  (1111) = 81+27+9+3+1 = (121)
  3 10
  
  so both a and b.
  But I did it wrong in exam :(
• 9 years agoHelpfull: Yes(3) No(0)
• both a and b
• 9 years agoHelpfull: Yes(2) No(0)
• a. 21
  b. 121
  
  only 121 will be possible
• 9 years agoHelpfull: Yes(2) No(0)
• 111 in base 4 gives 21 as well
• 9 years agoHelpfull: Yes(0) No(0)
• et cost of brown pencil be Rs. x and that of white pencil be Rs. (x+1)
  c.p of white pencil+c.p of brown pencil=100
  =>10(x+1)+8x=100
  =>18x=90
  so,x=5
  
  white pencil=10(x+1)=60
  brown pencil=8x=40
  
  
• 9 years agoHelpfull: Yes(0) No(2)