My grandson (I’m enjoying time with him today) is a math nut. So I asked
him these two question.
In a contest, four fruits (an apple, a banana, an orange, and a pear) have
been placed in four closed boxes (one fruit per box). People may guess which
fruit is in which box. 123 people participated in the contest. When the
boxes are opened, it turns out that 43 people have guessed none of the
fruits correctly, 39 people have guessed one fruit correctly, and 31 people
have guessed two fruits correctly.
MY QUESTION: How many people have guessed three fruits correctly, and how
many people have guessed four fruits correctly?
~~
An old farmer died and left 17 cows to his three sons. In his will, the
farmer stated that his oldest son should get 1/2, his middle son should get
1/3, and his youngest son should get 1/9 of all the cows. The sons, who did
not want to end up with half cows or fractions of cows, sat for days trying
to figure out how many cows each of them should get.
One day, their neighbor came by to see how they were doing after their
father’s death. The three sons told him their problem. After thinking for a
while, the neighbor said: “I’ll be right back!” He went away, and when he
came back, the three sons could divide the cows according to their father’s
will, and in such a way that each of them got a whole number of cows.
MY QUESTION: What was the solution?
(answers in a few days)
~~
Dr Bob Griffin, www.grif.net
1 cross + 3 nails = 4 given