英语数学题翻译求助。。。谢谢大家。别灌水谢谢。嗷嗷嗷？

Question

请大家帮忙翻译一下这道题的中文，并且给个思路怎么解答。谢谢大家了。
Jamar bought some pencils costing more than a penny each at the school bookstore and paid $1.43 . Sharona bought some of the same pencils and paid $1.87. How many more pencils did Sharona buy than Jamar?

Answer 1

翻译：
贾马尔在学校书店买了一些铅笔，每支售价超过一便士，花了1.43美元。莎罗娜买了一些同样的铅笔，花了1.87美元。莎洛娜比贾马尔多买了多少支铅笔？

解题思路：
铅笔的单价未知，设为A美元/支，则莎洛娜比贾马尔多买了
1.87/A-1.43/A 支铅笔。