Q. A box contains 25 notes, 1 rs. is marked on 19 notes of them and 5 rs. on remaining notes. Another box B contains 50 notes in it 1 rs. is marked on 45 notes of them and 13 rs. is marked on the remaining notes. All the noted of two given boxes are collected and put them into another box and mixed them properly. A note is at random drawn from this box. What is the probability that the note drawn has some thing else beside 1 rs.