8 : 18 : : 24 : ?
(a) 38
(b) 32
(c) 44
(d) 43

• 3^2-1=8
  4^2+2=18
  5^2-1=24
  there for
  6^2+2=38 ans
• 10 years agoHelpfull: Yes(93) No(7)
• 8:18::24:54
  4*2:9*2::4*6:9*6
  so 54 shud be the ans as ratio n proportion means that should in the same ratio..4:9 k hi proportionate hna chahye
• 10 years agoHelpfull: Yes(22) No(12)
• 8:18::24:x
  The product of the means (inside terms) = product of the extremes (outide terms)
  8x = 18*24 = 432
  x = 54
• 10 years agoHelpfull: Yes(9) No(1)
• 4*2=8 : 9*2=18
  (but 4+2=6) (but 9+2=11)
  
  6*(2+2=4)=24 : 11*(2+2=4)=44
  so answer is (c)44.
  
  
• 10 years agoHelpfull: Yes(3) No(12)
• 8/18 = 24/x
  X = 24÷8×18 = 54
  
• 10 years agoHelpfull: Yes(3) No(2)
• 8x=18*24
  x=18*3
  x=44
• 10 years agoHelpfull: Yes(2) No(19)
• 8=3^2-1=9-1=8
  18=4^2+2=16+2=18
  24=5^2-1=25-1=24
  38=6^2+2=36+2=38
• 10 years agoHelpfull: Yes(2) No(0)
• Correct Answer is 54 :
  The product of the means (inside terms) = product of the extremes (outide terms)
  8* X = 18*24 = 432
  x = 54
• 10 years agoHelpfull: Yes(1) No(0)
• product of means=product of extremes,so 54 should be the answer
• 10 years agoHelpfull: Yes(1) No(0)
• This s not a ratio type of question, this s analogy so sudhir 's answer is correct and either 54or 44 is not the answer
• 9 years agoHelpfull: Yes(1) No(0)
• it's not in options so approach may be wrong
  
• 9 years agoHelpfull: Yes(1) No(0)
• 3*3-1 =8, 4*4+2 =18, 5*5-1 =24, 6*6+2 = 38 ...hence the ans is 38..
• 8 years agoHelpfull: Yes(1) No(1)
• if 3*3-1 = 8,
  
  4*4+2 = 18,
  
  5*5-1 = 24 then
  
  6*6+2 = 38
• 8 years agoHelpfull: Yes(1) No(1)
• 8:18::24:43
  8:(1+8)::(2+4):(4+3)
  8:9::6:7
  hence 43 is ans
• 10 years agoHelpfull: Yes(0) No(3)
• Check out the third order in the whole series. It may changed with the difference of 1/3, 2/3,1 in(3/3), ?.. Answer: 4/3
• 10 years agoHelpfull: Yes(0) No(2)
• 8= 3^2-1
  18=4^2+2
  24=5^2-1
  38=6^2+2
  therefore answer is (a) 38
• 6 years agoHelpfull: Yes(0) No(0)