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
  hence y = 114 = no. of 2 kg packets
  
• 14 years agoHelpfull: Yes(6) No(1)
• let x=1kg packet
  y=2kg packet
  total no. of packets x + y = 150
  total weight of packets 1x + 2y = 264
  on solving we get y = 114
• 14 years agoHelpfull: Yes(2) No(1)
• Ans b) 114
  Let the no of 1 kg packets be n1 and no. of 2 kg packet be n2
  Given that n1+n2=150
  Since the total weight be 264 kg
  we can form n1(1)+n2(2) = 264
  sub n2 =150-n1 in the above equation , we get
  n1 + 2(150-n1)=264
  n1+300-2n1=264
  n1 = 36
  n2 = 114
• 14 years agoHelpfull: Yes(1) No(2)
• let no of 2kg packets are x,
  so 1kg packets are (150-x)
  then total weight of the box is 2*x+(150-x)*1 kg
  now 2*x+(150-x)*1=264
  => x=264-150=114
• 9 years agoHelpfull: Yes(0) No(0)