WowOK417
19.09.2019 •
Mathematics
The ratio of the number of girls to the number of boys at a school event was 9: 8. after some time, 25 of the girls left and the ratio became 1: 2. how many total students were originally at the event?
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Ответ:
1/980
Step-by-step explanation:
the population is 980 so they are 1 out of 980