Question
There was an equal number of boys and girls at the school hall. After 37 of the boys and 31 girls left the school hall, there were 13 more boys than girls at the school hall. How many students were there at the school hall at first?
4 m

Click button first when a symbol is required. X

There was an equal number of boys and girls at the school hall. After 37 of the boys and 31 girls left the school hall, there were 13 more boys than girls at the school hall. How many students were there at the school hall at first?