5 : 24 :: 8 : ?

a. 65
b. 63
c. 62
d. 64

• 5^2-1= 24 like that 8^2-1=63....
• 10 years agoHelpfull: Yes(47) No(1)
• i dont know how this guys doing this math....
  it simple...
  5/24=8/x
  so,x=192/5
  here is no right option.....in question
• 10 years agoHelpfull: Yes(14) No(6)
• 5^2-1=24
  So 8^2-1=63
  So b is correct
• 10 years agoHelpfull: Yes(9) No(1)
• if it is a serise 5,24,8,x
  then x is 63
  other wise as rule of proportion it can't be 63
• 10 years agoHelpfull: Yes(5) No(0)
• 5^2-1=24 and 8^2-1=63 so,63 is the right answer
• 10 years agoHelpfull: Yes(3) No(0)
• 5:24->5^2-1
  8:63->8^2-1
• 10 years agoHelpfull: Yes(3) No(1)
• Answer is 63
  
  5:24 =5^2-1
  8:63 =8^2-1
• 9 years agoHelpfull: Yes(2) No(0)
• 63
  5:5^2-1::8:8^2-1
• 10 years agoHelpfull: Yes(1) No(0)
• 63
  
  5^2-1=24
  similarly 63 will be the answer
• 10 years agoHelpfull: Yes(1) No(0)
• 63 is the r8 ans.
• 10 years agoHelpfull: Yes(1) No(0)
• 5^2)-1=24 8^2)-1=63
• 10 years agoHelpfull: Yes(1) No(0)
• 5:24::8:63
  
  5:2+4::8:6+3
  5:6::8:9
• 10 years agoHelpfull: Yes(1) No(0)
• b.63
  5^2-1=25
  8^2-1=63
• 9 years agoHelpfull: Yes(1) No(0)
• 63
  5:5^2-1
  thus 8:8^2-1=64-1=63
• 8 years agoHelpfull: Yes(1) No(0)
• b.63
  
  2 ways...to get this ans
  
  i) 5:24::8:?
  since 5^2-1=24
  => 8^2-1 = 63
  
  ii) 5:24::8:?
  since 5=2+4-1,
  =>8=6+3-1
  =>only 63 satisfies
  Thus, 63 is the correct ans
• 8 years agoHelpfull: Yes(1) No(0)
• 63 because 5 ka square is 25 and 24 is one less
• 10 years agoHelpfull: Yes(0) No(0)
• 63
  
  24=5*5-1
  so, 8*8-1=63
• 10 years agoHelpfull: Yes(0) No(0)
• 5x=24*8
  x=192/5
• 10 years agoHelpfull: Yes(0) No(0)
• 24*8=5x
  x=192/5
• 9 years agoHelpfull: Yes(0) No(0)
• 5*5-1=24
  therefore, 8*8-1=63
• 9 years agoHelpfull: Yes(0) No(0)
• 5*5=25-1,8*8=64-1=63
• 9 years agoHelpfull: Yes(0) No(0)
• 5 : 24 --> (2+4) - 1 = 5
  8 : ? ---> (x + y) - 1 = 8
  
  from the given options x and y could 6 and 3 respectively.
  So the answer is 63.
• 9 years agoHelpfull: Yes(0) No(0)
• (5*4)+4=24
  similar types, (8*7)+7=63
• 8 years agoHelpfull: Yes(0) No(0)
• 5:24 =(5*5-1) = (5^2) - 1 = 24
  hence (8^2)-1 = 63
  Answer is option b
• 5 years agoHelpfull: Yes(0) No(0)
• b 63 8 is multiply by 7 and add 7
  8*7+7=63
• 3 years agoHelpfull: Yes(0) No(0)