Question
At a school swimming event, 23 of the students were girls. Given that that 38 of the boys and 58 of the girls did not know how to swim, how many students were there altogether if there were 143 swimmers at the event?
4 m

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At a school swimming event, 23 of the students were girls. Given that that 38 of the boys and 58 of the girls did not know how to swim, how many students were there altogether if there were 143 swimmers at the event?