The average of the two-digit numbers, which remain the same when the digits interchange their positions, is :
Option
a) 33
b) 44
c) 55
d) 66

• 11+22+33+44+55+66+77+88+99/9=55
  d.55
• 10 years agoHelpfull: Yes(18) No(0)
• 55+55/2=55
• 10 years agoHelpfull: Yes(2) No(10)
• 33+33/2 = 33
  44+44/2 = 44
  55+55/2 = 55
  66+66/2 = 66
  So all answers are correct. (e) All of these
• 10 years agoHelpfull: Yes(2) No(8)
• ans c right
• 8 years agoHelpfull: Yes(1) No(2)
• all d optins r crct
  
• 10 years agoHelpfull: Yes(0) No(7)
• answer c option is 55
• 9 years agoHelpfull: Yes(0) No(4)
• (10x+y)= (10y+x)
  so, x=y
  average = 11(x+y)/2= 11x
  so, x can be any integer
  so all options are correct
• 9 years agoHelpfull: Yes(0) No(3)
• 11+22+33+44+55+66+77+88+99=11*45
  average=(11*45)/9=55
• 8 years agoHelpfull: Yes(0) No(3)
• Ans: 55
  (11+22+33+44+55+66+77+88+99)/9 = 55
• 7 years agoHelpfull: Yes(0) No(0)
• 11+22+33+44+55+66+77+88+99=495/9
  55
• 7 years agoHelpfull: Yes(0) No(0)
• 55+55/2=55
• 7 Months agoHelpfull: Yes(0) No(0)