In a purse there are 20 rupee notes ten rupee notes and 50 rupee notes the number of 50 rupee notes exceeds 2 times the number of 10 rupee note by 1 the number of 20 rupee notes are 5 less than the number of 10 rupee notes if the total value of the money in a purse is 860 find the number of each variety of notes.