Vicente saw Sophie's mom giving Sophie 20 oranges every day to carry to school to eat. He also saw Hannah's dad giving Hannah 40 grapes every day to eat at the school. If he counted the number of fruits that the girls were given for 30 days, calculate the total number of fruits that Sophie and Hannah had eaten in the 30 days. Let's think first. Chain of thought:
If Sophie was given 20 oranges every day for thirty days, she had taken 20 * 30 = 600 oranges to school. Similarly, in the thirty days, Hannah had taken 40 * 30 = 1200 grapes to school. In the thirty days, Hannah and Sophie took 1200 + 600 = 1800 fruits to school.
Therefore, the answer is 1800.