Solve the riddle:
An apple is 40 cents, a banana is 60 cents and a grapefruit is 80 cents.
How much is a pear?

Below you will find a hint and the correct answer to the riddle.
Little hint:
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Hint: 4* cents
Right answer:
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Answer: 40 cents. The price of each fruit is calculated by multiplying the number of vowels by 20c.