China Naming Network - Company naming - Xiao Ming has one hundred pence and five nickels, which are worth three yuan and twenty cents in total. How many are these two coins?
Xiao Ming has one hundred pence and five nickels, which are worth three yuan and twenty cents in total. How many are these two coins?
Solution: If there are x pieces with 2 points, then there are 100-X pieces with 5 points.
2X+5×( 100-X)=320
2X+500-5X=320
3X= 180
X=60
100-60=40
A: There are 60 yuan for 2 points and 40 yuan for 5 points.