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Fill in the blank with the correct number. Mark had 50 books at first.He gave (1)/(5) of his books to his best friend.Then he gave (3)/(10) of the remaining books to his brother.How many books does he have now? Answer: He has square books.

Câu hỏi

Fill in the blank with the correct number.
Mark had 50 books at first.He gave (1)/(5) of his books to his best
friend.Then he gave (3)/(10) of the remaining books to his brother.How
many books does he have now?
Answer: He has square  books.
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Fill in the blank with the correct number. Mark had 50 books at first.He gave (1)/(5) of his books to his best friend.Then he gave (3)/(10) of the remaining books to his brother.How many books does he have now? Answer: He has square books.

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Thị Huệcựu binh · Hướng dẫn 12 năm

Trả lời

Mark gave $\frac{1}{5}$ of 50 books to his friend, which is $\frac{1}{5} \times 50 = 10$ books. He had $50 - 10 = 40$ books remaining.<br /><br />Then he gave $\frac{3}{10}$ of the remaining 40 books to his brother, which is $\frac{3}{10} \times 40 = 12$ books.<br /><br />He has $40 - 12 = 28$ books left.<br /><br />Answer: 28<br />