Solution:
Out of 90 tickets, two tickets already considered,
instead of selecting 5 tickets we have to select only 3
tickets out of 88 tickets.
Required probability
In a lottery there were 90 tickets numbered 1 to 90. Five tickets were drawn at random- The probability that two of the tickets drawn numbers 15 and 89, is
Out of 90 tickets, two tickets already considered,
instead of selecting 5 tickets we have to select only 3
tickets out of 88 tickets.
Required probability