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With $30 in his pocket , Ron wanted to b...

With $30 in his pocket , Ron wanted to buy some chocloates priced at $3 per piece and some pencils priced at $4 per piece. What is the different number of ways in which he can purchase the items if he must buy at least one chocolate and one pencil and must spend the entire amount he has ?

A

1

B

2

C

3

D

4

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