One of the most startling calculations is the following:--

A penny at 5 per cent. compound interest from A.D. 1 to 1890

would amount to £10,000,000,000,000,000,000,000,000,000,000,000,000,

_i.e._, Ten Sextillions of pounds, or more money than could be

contained in One Thousand Millions of Globes each equal to the Earth

in magnitude, and all of solid gold.

111. On a flagstaff consisting of an upright pole (6 feet of which is

underground) is a cross-yard 24 feet long; the latter is fixed at a

distance of one-third of the length of the visible part of the pole

from the top; passing from the top of the pole to the ends of the

yard are ropes, forming stays whose falls or ends reach to the ground

on either side of the pole, and it is found that these falls just

reach the base of the pole. The total length of rope in the aforesaid

stays is 40 feet. Supposing that the top diameter of the pole is

one-third of that at the extreme base, and that the whole length of

rope used is 54,177 times the base diameter of the pole, what would

the pole cost at 1 penny per 100 cubic inches?

TEACHER--“Your writing is fairly good, but how do you account

for making so many mistakes in your spelling?”

SCHOLAR--“Please, ma’am, I had chilblains on my hand?”

112. Put down 4 marks (| | | |), and then require a person to put

5 more marks and make 10.

“KEEP YOUR HAIR ON.”

113. Supposing there are more persons in the world than anyone

has hairs on his head, there must be at least two persons who have

the same number of hairs on the head to a hair. Explain this.

The puzzle king · 第 106 / 216 题