If 10 tomatoes became ripe during the week, how many did Belle give away?

Question

On Monday, Belle had 11 ripe tomatoes in her garden. During the rest of the week, she gave away some tomatoes, and others became ripe. At the end of the week, there were 13 ripe tomatoes. If 10 tomatoes became ripe during the week, how many did Belle give away?

Answer 1

Already there were 11 ripened tomatoes . Then 10 tomatoes became ripened during the rest of week. So total ripened tomatoes count during the whole week is 21 tomatoes. But after she gave away some, there were 13 tomatoes at the end of week. So she gave away 8 tomatoes.