Once upon a time there was a wizard who invented a means of
amplifying the sounds produced by the king's musicians. By dropping
a gold coin into a slot, the king could amplify sound:
1 coin - 1 fold
2 coins - 2 fold etc.
The wizard persuaded the king to write down a number indicating the
pleasure he experienced from various performances of the
musicians.
Later he presented these results:
Coins Pleasure
0 10
1 15
2 20
3 25
Said the wizard, "Clearly, your majesty, we have found the fountain
of pure joy. The more coins, the greater amplification, and the
greater your pleasure."
Which, if any, of these amounts do you recommend that the king use
for his next investment in amplification (you should suggest more
than one if appropriate).
Explain your advice.
a. 3 coins
b. 100 coins
c. 1000 coins
d. 40 coins
e. 10 coins
