Question
At a school swimming event, 25 of the pupils were girls. Given that that 23 of the boys and 34 of the girls did not know how to swim, how many pupils were there altogether if there were 153 swimmers at the event?
4 m

Click button first when a symbol is required. X

At a school swimming event, 25 of the pupils were girls. Given that that 23 of the boys and 34 of the girls did not know how to swim, how many pupils were there altogether if there were 153 swimmers at the event?