An Eraser, Pencil, Notebook together costs $1.00. Notebook costs more than the cost of 2
Pencils. 3 Pencil costs more than 4 Erasers. 3 Erasers costs more than a Notebook.
How much does a pencil costs?

• Let cost of each pencil, eraser and notebook be P,E,N respectively...
  
  Then from the question E+P+N=1.-----(1)
  
  Also, N=2P ----(2)
  3E=N ----(3)
  3P=E ----(4)
  
  Only from equations (1),(3)&(2)
  
  We get (3P/4)+P+2P=1.
  
  On solving the above equation, we get P=$0.266
• 6 years agoHelpfull: Yes(5) No(18)
• . N > 2P
  2. 3P > 4E
  3. 3E > 1N
  
  where N-notebook, P-pencil, E-Eraser,....
  
  according to that.. if u take notebook as 55 cents.. pencil as 26 cents.. and eraser as 19 cents.. all the above condition satisfies..
• 6 years agoHelpfull: Yes(3) No(9)
• Its soln. is 0.2
  Its given that
  E+P+NB=1-----(I)
  NB>2P
  P>4E
  E>NB
  WE HAVE TO FIND THE VALU OF PRNCIL THAT IS (P) IN MY CASE
  By assuming the value of NB=2P
  AND Substituting it to eraser (E)
  ie.. E=2P
  AND SUBSTITUTING THE VALUE IN (I)
  2P+P+2P=1
  5P=1
  P=1/5
  THEREFORE P=0.2
• 6 years agoHelpfull: Yes(2) No(1)
• Above Conditions
  
  N + P + E = 1 --------(1)
  
  N > 2P --------------- (2)
  
  3P > 4E --------------- (3)
  
  3E > N ----------------(4)
  
  4 Substituting 1 (N = 3E)
  
  3E + P + E = 1
  
  4E + P =1 ----------------(5)
  
  3 Substituting 5 (3P = 4E)
  
  3P + P = 1
  4P = 1
  P = 0.25$
• 6 years agoHelpfull: Yes(1) No(0)