Question

2) 20 women build a wall in 6 days. a) How long would it take 10 women to build the same wall? a) How long would it take 30 women to build the same wall? b) It takes x women 2 days to build the same wall. Work out the value of x​

Answer 1

a) 12 days

b) 4 days

c)
`x=60`

Explanation:

We know that the number of women is inversely proportional to the number of days taken.

a)

20 women // 6 days

10 women //
`a` days

`(20)/(10)=(a)/(6)` ⇒
`a=12`

b)

20 women // 6 days

30 women //
`b` days

`(20)/(30)=(b)/(6)` ⇒
`b=4`

c)

20 women // 6 days

`x` women // 2 days

`(20)/(x)=(2)/(6)` ⇒
`x=60`