A person buys a pencil worth 2 yuan, 10 cents and 6 cents. If the price of a pencil is 1 cent less, he can use the money to buy 3 more pencils. How many pencils could he have bought.
一个人买了2元1角6分钱的铅笔，如果一支铅笔的价格少1分，那么他可以用这些钱多买3支铅笔．他原来可以买多少支铅笔．
<result>24</result>