Of the three numbers, second is twice the first and is also thrice the third. If the average of the three numbers is 44, the largest number is :

a. 24
b. 36
c. 72
d. 108

• x,2x,2x/3
  (x+2x+2x/3)/3=44
  11x=44*9
  x=36
  2x=72
  ans:72
• 11 years agoHelpfull: Yes(12) No(1)
• option c)72 is the answer
  let the second no be x
  (x/2+x+x/3)/3=44
  on solving x=72 or by back substitution
• 11 years agoHelpfull: Yes(6) No(2)
• Let numbers be a, b, c.
  Second is twice the first and three times the third, (so b is the largest).
  a = (1/2)b
  c = (1/3)b
  Now we can express average in terms of b
  Average = b[1/2 + 1 + 1/3]/3 = (11/18)b = 44
  Largest, b = 18*44/11 = 72
  
  Check: a = 36, b = 72, c = 24, average = 132/3 = 44
• 9 years agoHelpfull: Yes(2) No(0)