20 men, 10 women and 10 children are in a competition.
The mean score for the women is 15.6.
...
Mathematics, 10.11.2020 23:00 Natavia3402
20 men, 10 women and 10 children are in a competition.
The mean score for the women is 15.6.
The mean score for the children is 9.2.
Kevin says that the mean score for all 40 people is 11.2.
Work out the mean score for men
Answers: 3
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