If A owes 50 rs on a B. he decides to return the money in 10rs and 20rs note only on every alternate day starting on Monday. Find out the different ways in which he can return the money.(two ways are said to be different if different denominations of notes are given )

• A can return money to B in 8 ways
  10 10 10 10 10 -1way
  10 10 10 20 -4!/3!=ways
  10 20 20 -3!/2!=3ways
  so total 8ways
• 11 years agoHelpfull: Yes(28) No(5)
• answer is 3..... just read the last line of the question carefully....it means we need not to arrange it again
• 11 years agoHelpfull: Yes(7) No(1)
• answer is 8 ways
  he can give five 10 notes=5!/5!=1
  also he can three 10 notes one 20 note=4!/(3!*1!)=4 ways
  also he can give one 10 note and two 20 notes=3!/(2!*1!)=3 ways
  therefore total=1+4+3= 8 ways.
• 11 years agoHelpfull: Yes(3) No(4)
• Total of the 8 ways !!!
• 11 years agoHelpfull: Yes(1) No(0)