a) 12 days
b) 4 days
c) ![2) 20 women build a wall in 6 days. a) How long, №18011299, 16.12.2020 01:03](/tpl/images/2820/1896/79ea7.png)
Step-by-step explanation:
We know that the number of women is inversely proportional to the number of days taken.
a)
20 women // 6 days
10 women //
days
⇒ ![2) 20 women build a wall in 6 days. a) How long, №18011299, 16.12.2020 01:03](/tpl/images/2820/1896/0980f.png)
b)
20 women // 6 days
30 women //
days
⇒ ![2) 20 women build a wall in 6 days. a) How long, №18011299, 16.12.2020 01:03](/tpl/images/2820/1896/53753.png)
c)
20 women // 6 days
women // 2 days
⇒ ![2) 20 women build a wall in 6 days. a) How long, №18011299, 16.12.2020 01:03](/tpl/images/2820/1896/79ea7.png)