4.data sufficiency
A wire is cut into 3 parts with unequal length then what is the length of the shortest piece?
a) sum of two greatest length pieces=12
b)sum of two least length pieces=11

• @debaranjan : but if we solve it through equation there are 3 variables and 2 equations. So both statements are not sufficient to find the answer. However if we we adopt hit and trial approach as of yours than we can find the answer. So what will be its answer as far as problem of Data Sufficiency is concerned ??
  
• 11 years agoHelpfull: Yes(12) No(0)
• In data sufficiency you cannot assume the data other then what is provided. Solving it through equation there are 3 variables and 2 equations. So, cannot be answered through both the statements.
• 11 years agoHelpfull: Yes(11) No(0)
• shortest length=5.25
  All three Lengths are 6.25,5.75,5.25
  6.25+5.75=12
  5.75+5.25=11
  
• 11 years agoHelpfull: Yes(3) No(7)
• as there are three variable so we required 3 equation
  by tricking there may be many soln as 6.4 5.6 5.4 and 6.25 5.75 5.25
  so both statement are in sufficient to give answer
• 11 years agoHelpfull: Yes(3) No(1)
• let a be largest, c be smallest, x be total length
  a+b+c=x....(i)
  a+b=12...(ii)
  b+c=11...(iii)
  
  from eq.(i) a+b=x-c....(iv) and b+c=x-a(v) and replace a+b and b+c of eq. (i),(iii) by eq. (iv)& (v)
  on solvng this x-c=12 and x-a=11 we get a-c=1
  
  so finally we have a+b=12,b+c=11,a-c=1, a+b+c=x
  Now if x=18 then( a=7,b=5,c=6) but it is not fixed it vary according to x value
  if x=18.5 then (a=7.5,b=4.5,c=6.5)
  
  
• 11 years agoHelpfull: Yes(2) No(6)
• I also think the same that it cannot be answered through both the statements i.e. answer is (b)
• 11 years agoHelpfull: Yes(1) No(0)
• yes we can't assume any value.....and this question can't be solved using any of these equations....
• 11 years agoHelpfull: Yes(0) No(0)
• x+y=12
  y+z=11
  so x-z=1
  so (if x=6 then z will be 5)just example
  v can take x=6,y=6,z=5 all will satisfy
  but it is mentioned that all x,y,z are diff
  so our aim should be like this (take x,y,z like this diffrence between them will little
  if x=6.4,y will be 5.6,
  and z=x-1==> 5.4
  which will satisfied the condition
  
  
• 11 years agoHelpfull: Yes(0) No(0)
• don't be confuse.. this type of problem can easily be solved through d option given..:)
• 10 years agoHelpfull: Yes(0) No(0)
• as there are three variable so we required 3 equation
  by tricking there may be many soln as 6.4 5.6 5.4 and 6.25 5.75 5.25
  so both statement are in sufficient to give answer
  
• 10 years agoHelpfull: Yes(0) No(0)