Question:
There were 800 students in a school. 40% of the students were boys. More boys joined the school and the percentage of boys became 60% of the new total. How many boys where there in the end?

Solution:

Empowering Students and Parents with Solutions
There were 800 students in a school. 40% of the students were boys. More boys joined the school and the percentage of boys became 60% of the new total. How many boys where there in the end?