Question
In a hall, 89 of the pupils wore scarves. After 186 pupils who wore scarves left the hall, the percentage of pupils who wore scarves decreased to 20%. How many pupils in the hall did not wear scarves?
2 m

Click button first when a symbol is required. X

In a hall, 89 of the pupils wore scarves. After 186 pupils who wore scarves left the hall, the percentage of pupils who wore scarves decreased to 20%. How many pupils in the hall did not wear scarves?