How Many Tricycles?
3
5
7
9
Defining the Variables: Let the number of bicycles be x. Let the number of tricycles be y. Based on the two conditions given in the problem, we can create two equations: 1. Total number of vehicles: Bicycles and tricycles total 10. x + y = 10. 2. Total number of wheels: Each bicycle has 2 wheels and each tricycle has 3 wheels, totaling 23. 2x + 3y = 23. 3. Final Answer: x = 7 (There are 7 bicycles). y = 3 (There are 3 tricycles).
A shop has bicycles and tricycles on display. There are 10 of them in total, with 23 wheels altogether.
How many bicycles and how many tricycles are there? It's said that quick-thinking people can do mental calculations in 10 seconds!
