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damaskus [11]
3 years ago
14

URGENT BRAINLIEST GIVEN

Mathematics
1 answer:
UNO [17]3 years ago
6 0

This is the way I do it to find the average.

10 girls times 70 = 700

15 boys times 80= 1200

700+1200=1900 all their scores

1900÷25 (number of boys and girls)=76 or 76%

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