there are 250 people in a museum. 2/5 of the 250 people are girls. 3/10 of the 250 people are boys. the rest of the 250 people a
re adults. work out the number of adults in the museum
2 answers:
His is:-
250 - 2/5 *250 - 3/10 * 250
= 250 - 100 - 75
= 250 - 175
= 75 answer
He is 75, simple math shows...
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