Ming bought four pencils of the same kind, Hong bought seven, and Xiaohong spent six cents more than Xiao Ming. What's the price of each pencil? Line segment to be drawn
As can be seen from the figure below, Red bought 7-4=3 more than Ming, so it spent 6 cents more on 3 yuan. It can be seen that the price of each pen is: 3 yuan 6jiao ÷3= 1 Yuan 2jiao.
Comprehensive formula:
3 yuan 6 jiao (7-4)
=3 yuan 6 jiao ÷3
= 1 yuan 2 jiao.