a and b are natural number , Is a>b??
a) 8-(a-b)^3 is positive
b) 4-(a-b)^2 is negative

• No one alone can satisfy the equation .. Even both equation together are also insufficient to satisfy the equation..
• 10 years agoHelpfull: Yes(24) No(0)
• @ Ankit sukla
  take a=-4 < b=2
  8-(-4-2)^3=8+36*6=+ve ,then how a
  i am sure no one alone can satisfy , ? about both together
• 10 years agoHelpfull: Yes(6) No(0)
• both are insufficient
• 10 years agoHelpfull: Yes(4) No(0)
• a is answer
• 10 years agoHelpfull: Yes(3) No(2)
• both equation are required to find a>b.
• 10 years agoHelpfull: Yes(2) No(7)
• a) 8-(a-b)^3>0 b) 4-(a-b)^2(a-b)^3 or +/- 2
• 10 years agoHelpfull: Yes(1) No(0)
• both equation are required to find a>b. my score has been released and my ans was correct...maine four kia the ps me and all four are correct and one of the correct ans is this...
• 10 years agoHelpfull: Yes(1) No(3)
• I think we only have to find that a>b is right or wrong..nd we can find this from statement A..answer should be one..
• 10 years agoHelpfull: Yes(1) No(0)
• 8-(a-b)^3>0..............(i){this alone can’t answer for example a=4,b=1}
  
  4-(a-b)^20..............(iii)
  
  inequality (ii)==inequlity(iii)
  Now inequlity (i)+(iii)
  
  8-(a-b)^3+(a-b)^2-4 >0
  
  (a-b)^2*(1-a+b)+4>0{Now addition of both also can’t answer take a=4,b=1}
  
  So we cant answer even we take both the statement
• 9 years agoHelpfull: Yes(1) No(0)
• sorry @ankit sukla
  take a=1 < b=2
  
• 10 years agoHelpfull: Yes(0) No(0)
• from a) we get a-b
• 10 years agoHelpfull: Yes(0) No(0)
• only a is sufficient
• 10 years agoHelpfull: Yes(0) No(0)
• (a)i think if a=5 and b=10 then a
• 10 years agoHelpfull: Yes(0) No(0)
• (a-b)^2 > 4
  so (a-b)^3 is definitely > 8
  (a-b)^3 is negative , as final result is positive.
  So, (a-b) is negative.
  a is not greater than b , a
• 10 years agoHelpfull: Yes(0) No(0)
• a-b>0
  t=a-b
  t^34
  assume t=+-2.1
  then t =-2.1 would satisfy 1st eq but that would mean ta
• 10 years agoHelpfull: Yes(0) No(0)
• both aand b are insufficent to satisfy the relation...
  
• 10 years agoHelpfull: Yes(0) No(0)
• either of the statements leads to a solution...
• 10 years agoHelpfull: Yes(0) No(1)
• 8-(a-b)^3 > 0 (because positive) 4-(a-b)^2 < 0 (because -ve)
  then 8> (a-b)^3 2^2 a-b
  
  so we cant say 2 is either less or greater than a-b so we cant say a>b
• 9 years agoHelpfull: Yes(0) No(0)
• from(a) (a-b)
• 9 years agoHelpfull: Yes(0) No(0)
• both are insufficient to answer the question. as no statement can provide the unique vale of a and b.
• 9 years agoHelpfull: Yes(0) No(0)
• here both statement alone can satisfy the equation
  solution:
  a)8-(a-b)^3>0
  8>(a-b)^3
  2>(a-b)
  b+2>a
  because a ,b are natural no so from here we find that a>b or not
  so it is alone sufficient
  
  b) 4-(a-b)^2
• 9 years agoHelpfull: Yes(0) No(0)