Question
Adam gets 16 stickers for every 5 books that he reads.
He can exchange 4 stickers for 1 pen.
If Adam read 20 books,
how many pens can he exchange with the stickers?
4 m

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Adam gets 16 stickers for every 5 books that he reads.
He can exchange 4 stickers for 1 pen.
If Adam read 20 books,
how many pens can he exchange with the stickers?