In what ratio must tea at Rs. 62 per Kg be mixed with tea at Rs. 72 per Kg so that the mixture must be worth Rs. 64.50 per Kg?

A.

1 : 3

B.

2 : 3

C.

3 : 1

D.

3 : 2

• C. 3:1
  let x grams be taken from 62 rs tea and y grams be taken from 72 rs tea.
  we have to determine per kg,so x+y=1000 grams(1 kg)
  and 62*x+72*y=64.50*1000(the mixture would be of 1 kg thats why I have taken 1000 grams).
  by solving, x=750 and y=250
  X:Y=3:1.
  another solution,
  72-64.50=7.50
  64.50-62=2.50,
  hence 3:1(by crossing)
• 10 years agoHelpfull: Yes(13) No(0)
• 62 72
  64.50
  7.50 2.50
  72-64.50=7.50
  64.50-62=2.50
  7.50:2.50
  3:1
• 7 years agoHelpfull: Yes(1) No(0)
• let us take 3:1 ratio by trial and error method
  (3*62)+(1*72)=258
  258/4=64.5
• 8 years agoHelpfull: Yes(0) No(0)
• use alligation & mixture concept here...
  
  62 72
  
  64.50
  
• 7 years agoHelpfull: Yes(0) No(0)
• use alligation & mixture concept here...
  
  62 72
  
  64.50
  
• 7 years agoHelpfull: Yes(0) No(0)
• use alligation & mixture concept here...
  
  62 72
  
  64.50
  
• 7 years agoHelpfull: Yes(0) No(0)
• 72-1292:1292-62
  15:3
  3:1
• 7 years agoHelpfull: Yes(0) No(0)
• 72 per kg should be less and 62 kg per rice to be high
• 6 years agoHelpfull: Yes(0) No(0)