sriggins1375
16.07.2020 •
Mathematics
it was found that out of 45 girls,10 joined singing but not dancing and 24 joined singing.How many joined both. options: A: 21 B:34 C: 14 D:24
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Ответ:
answer is 24
out of 45,
24+10=singing
only 24=dancing
so 24 girls joined both
Ответ: