hardwick744
10.10.2020 •
Mathematics
4 men and 6 woman can complete a work in 8 days. while 3 men and 7 woman can complete it in 10 days. in how many days will 10 women complete it?
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Ответ:
7 w - 6 w = 10 d- 8 d
1 w = 2 d
then 10w - 7w = x- 10d
3w = x - 10d(1 w = 2 d)
3(2d) = x - 10d
x = 10d +6d
x = 16d
Ответ:
Question 11:B
Question 12: E
Step-by-step explanation: