Solution:It is given that boxes contain some slips with Re.1, Rs.5, and Rs.13.
We have to find the probability that the marked slip is other than .
First we find the total number of slips.
are marked in Box and are marked in Box as Re.1.
The number of slips that are marked other than is,
The probability of slips that are marked other than is,
The probability that slip is marked other than is .
Hence, option 2) is correct.