Daniel bought a few comics. His friend asked the price of the comics. Daniel said that the price is the predecessor of a number that has 2 tens and 0 ones. Help his friend find the price of the comics.
A
8 dollars
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B
9 dollars
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C
10 dollars
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D
19 dollars
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Solution
The correct option is D 19 dollars It is given that the price of the comics is the predecessor of a number that has 2 tens and 0 ones.
Therefore, the number is 20.
The predecessor of 20 = 20 – 1 = 19
Hence, the price of the comic books is 19 dollars.