data sufficient ARE BOTH X AND Y POSITIVE?
a)2x-2y=1
b)x/y>1
GIVE YOUR ANSWER IN WHICH STATEMENT SATISFY
1) only one is sufficient alone but cannot be answered with the help of other statement
2)can solved be either statement alone
3) both the statement required to solve the question but cannot be solved by one alone statement
4) cannot solved even with the help of both the statement

• yr ye hai pure solution 2x-2y=1 2y(x/y-1)=1 x/y>1 therore (x/y-1) is always positive 2y*positive= 1 hence y is positive.....therefore it is solved by both the statemnt together ..ans 3 .
  @ c. sunnel we dont assume values in data suffficient problem,,its for u @ AAA also
• 11 years agoHelpfull: Yes(36) No(2)
• 4 is the answer
  x=1/4 and y=-1/4
  x=-2 and y=-1 and x=2 and y=1
• 11 years agoHelpfull: Yes(12) No(11)
• 2x-2y=1
  =>x-y=1/2...1
  x/y>1....2
  div eq 1 by y
  x/y-1=1/2y
  now put value of x/y in above eqn as x/y>1
  x/y-1 is always +ve
  => 1/2y is also +ve i.e y is +ve both statement is required.
• 11 years agoHelpfull: Yes(5) No(1)
• 2x-2y=1
  let x=8,y=9
  2*8-2*9=16-18=-2
  here both x and y are positive but we r getting negative vaue of expression.
  again taking x=9 and y=7
  we get positive value of 2x-2y.so statement 1 alone is not sufficient to solve.
  now consider statement 2
  x/y>1
  by taking any value of x and y..either positive or negative for x>y will get value>1.and by statement 1 it is clear that x and y should be positive..
  hence right option is 3(both statement required to solve d question).
  
• 11 years agoHelpfull: Yes(4) No(5)
• 1. 2(x-y) =1
  x-y = 1/2 clearly insufficient
  
  2. x/y > 1
  
  x>y when y > 0
  xy
  
  From 2 x>y when y>0 so x>0 answer C
  
• 11 years agoHelpfull: Yes(4) No(1)
• mohini gupta
  here we have to find whether x and y is positive or not in these case.we cannot assume the values
  
• 10 years agoHelpfull: Yes(3) No(0)
• 4 is the answer
  1> if x=1/4 and y=-1/4
  2> if x=1 and y=1/2
• 11 years agoHelpfull: Yes(2) No(3)
• 4 is the ans
  reason is... 2*(-1)-2*(-3/2)= 1, where x=-1 and y=-3/2 are negative and x>y
• 10 years agoHelpfull: Yes(2) No(0)
• answer is c
  
  2x-2y=1 --------- (1)
  let x=1 and y=1/2
  =>2*1-2*1/2
  =>2-1=1 whicch satisfy the equation (1) and always satisfy the equation when x>y
  now,
  x/y >1-------- (2)
  the ratio of x/y always > 1 when x>y
  1/(1/2)>1
  =>2/1>1
  so, both statement are required (c)
• 10 years agoHelpfull: Yes(2) No(0)
• 2 is the answer
  .
  2(1)-2(1/2)=1
  
  or 2/(1/2)=4.
  so either one is enough .
• 11 years agoHelpfull: Yes(1) No(3)