A box of 150 packets consists of 1kg packets and 2kg packets. Total weight of box is 264kg. How many 2kg packets are there?
a) 100
b) 114
c) 200
d) 208

• x+y=150
  x+2y=264
  y=114
• 13 years agoHelpfull: Yes(13) No(2)
• ans b)114
  Go from options
  total 150 packets and we have to get 264 kg totally
  2kg packets 1kg packets
  
  100*2 + 50*1kg(remaining 150-100) = 250 ( not get 264)
  114*2 + 36*1kg(remaining 150-114) = 264 (got )
  so ans is b)114
• 13 years agoHelpfull: Yes(11) No(2)
• answer : (b) 114
  
  Let us say there are x number of 1kg packets and y number of 2kg packets.
  Totally there are 150 packets so , x+y = 150
  Next, total weight of box is given to be 264kg , therefore x(1kg)+y(2kg)= 264
  Solving the two equations (eliminate x) we get y = 114
• 13 years agoHelpfull: Yes(6) No(1)
• Given x= 2 kg Packs
  y= 1 kg packs
  => x + y = 150 .......... Eq... 1
  => 2x + y = 264 .......... Eq... 2
  On solving these two equations
  x = 114
  By using equation 1
  114 + y = 150
  => y = 36
  =>Number of 2 kg Packs = 114.
  
• 13 years agoHelpfull: Yes(2) No(1)