Raj has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Raj has 2 1/2 times as many rings as pins, and the number of pairs of earrings is 4 less than the number of rings.

How many earrings does Raj have?

• p+r+e=26, 2.5p=r => p=0.4r, e/2= r-4 => e=2r-8,
  0.4r+2r-8+r=26 => 3.4r= 34 => r=10
  e=2(10)-8=12
• 14 years agoHelpfull: Yes(3) No(0)
• ring=x,pin=y,earring=z.
  The equations are:
  x+y+z=26, 2x-5y=0, 2x-z=8.
  Upon solving, the number of ear rings = 12 (6 pairs)
  
• 14 years agoHelpfull: Yes(2) No(1)
• 8.5
• 14 years agoHelpfull: Yes(1) No(5)
• let x,y,z be the rings,pins,earrings
  x+y+z=26
  y=5x/2
  2z=x-4
  z=(x-4)/4
  solving these , we get x=7,y=17.5,2z=3 z=3/2=1.5
  
  So raju have 1 1/2 (1.5) ear-rings.
  Answer is 1.5
• 14 years agoHelpfull: Yes(0) No(4)
• 12 earrings - 6 pairs.
  4 pins, 10 rings, 12 earrings = 26 pieces.
• 14 years agoHelpfull: Yes(0) No(2)