#298 |
New puzzle!
If you write ten letters and place them in ten envelopes at random, how many letters, on average, would end up in the right envelopes?
If you write ten letters and place them in ten envelopes at random, how many letters, on average, would end up in the right envelopes?
The Moneyless Chicken says:-
Use it up, wear it out, make it do or do without.
Use it up, wear it out, make it do or do without.