Answer:
3.6
Step-by-step explanation:
you can use a proportion for this. Since 6 people are painting several offices in 5 days you would put 6 over 5. now we have three numbers and we need to find how many people can complete the same job in three days. so we would put 3 across from 5 because there both the same label (day). we don't know the fourth number so put a x or variable any letter. we need to find x. after you set up your proportion you would then cross multiply . 6 times 3 is 18 and 5 times x is 5x. now we divide. 5 divided by 5x is just x or 1x. so you have x alone now. 18 divided by 5 is 3.6 so x is 3.6 which is the answer .
6people x
----------------------- 18/5 = 3.6
5days 3Days
Answer:
4 people
Step-by-step explanation:
When [tex]x_1[/tex] people complete a piece of work in [tex]n_1[/tex] days and the same work is completed by [tex]x_2[/tex] people in [tex]n_2[/tex] days,
Then,
[tex]x_1\times n_1=x_2\times n_2[/tex]
Here,
[tex]x_1=6,n_1=5, n_2 = 3[/tex]
By substituting the values,
[tex]6\times 5=3x_2[/tex]
[tex]\implies x_{2}=\frac{30}{3} = 10[/tex]
Thus, the additional number of people = 10 - 6 = 4
