Читать книгу Endless Amusement - Unknown - Страница 15

A person having an even Number of Shillings in one Hand, and an odd Number in the other, to tell in which hand the odd or even Number is.

You desire the person to multiply the number in his right hand by an odd figure, and the number in his left by an even one; and tell you if the products, added together, be odd or even. If even, the even number is in the right hand; if odd, the even number is in the left. For instance,

I. Number in the right hand is even	18	In the left hand odd	7
Multiply by	3	Multiply by	2
	———		———
Product	54	Product	14
Add the Product of the left hand	14
	———
Which produces a total of	68

II. Number in the right hand is odd	7	In the left hand even	18
Multiply by	3	Multiply by	2
	———		———
Product	21	Product	36
Add the Product of the left hand	36
	———
Which produces a total of	57

Подняться наверх