Now, let us see how much each receives up to the end of four years:--

A B

1st year £100 | 50} 1st year

2nd " 120 | 55}

3rd " 140 | 60} 2nd "

4th " 160 | 65}

| 70} 3rd "

| 75}

| 80} 4th "

| 85}

---- | ----

£520 | £540

A spieler at a Country Show amused the people with the following

game:--He had 6 large dice, each of which was marked only on one

face--the first with 1, the second 2, and so on to the sixth, which

was marked 6. He held in his hand a bundle of notes, and offered to

stake £100 to £1 if, in throwing these six dice, the six marked faces

should come up only once, and the person attempting it to have 20

throws.

Though the proposal of the spieler does not on the first view appear

very disadvantageous to those who wagered with him, it is certain

there were a great many chances against them.

The six dice can come up 46,656 different ways, only one of which

would give the marked faces; the odds, therefore, in doing this

in one throw would be 46,655 to 1 against, but, as the player was

allowed 20 throws, the probability of his succeeding would be--

20

------

46,656

To play an equal game, therefore, the spieler should have engaged to

return 2332 times the money deposited.

The puzzle king · 第 18 / 216 题