Given
A+B+C=100
60A+40B+C=2000
Find A+B=?

Options :
A)76
B)74
C)can't determine
D)40

• solution cant be from options..
  logic has to be from the question itself.
  thus answer is cant determine.
  if answer is 40 than prove it not using the options.
• 10 years agoHelpfull: Yes(19) No(0)
• ans=40
  (60A+40B+C=2000)-(A+B+C=100)
  59A+39B=1900
  So if we take A+B=40 so if A=17 and B=23 then 17+23=40 and 59*17+39*23=1900
  it satisfy the condition so correct answer is=40
  
  
• 10 years agoHelpfull: Yes(13) No(6)
• The answer is cant determine because there are three variables but only two equations.
• 10 years agoHelpfull: Yes(9) No(6)
• ans is 40
  solve by using options
• 10 years agoHelpfull: Yes(4) No(5)
• Yeah... Good thanks for replies everyone..
  I think A For Apple :p has given right explanation.
• 10 years agoHelpfull: Yes(1) No(0)
• cant determine as data is insufficient
• 9 years agoHelpfull: Yes(1) No(0)
• Can't be determined.
  Because if there are 3 unknowns 3 equations should be there to solve the values of the unknowns.
• 9 years agoHelpfull: Yes(0) No(1)
• May i know the final answer.whether to verify from options or not.
• 9 years agoHelpfull: Yes(0) No(1)
• no need of checking the options..
  answer is option C.
• 9 years agoHelpfull: Yes(0) No(0)