instruction:
You are given a math word problem and you are supposed to apply multiplication or division mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
question:
Mike invited 13 friends to a birthday party , but 7 could n't come . If he wanted to buy enough cupcakes so each person could have exactly 4 , how many should he buy ?
answer:
24


question:
The next act involved several jugglers . If each juggler is juggling 6 balls at a time , how many balls are needed if there are 378 jugglers putting a show at the same time ?
answer:
2268


question:
Our watermelons have 100 seeds each . If we have 4 watermelons , how many seeds should there be when all seeds are taken out of the watermelons ?
answer:

400