To build a school;
20 workers -> 18 days.
So 1 worker -> 18/20 days.
So; 12 workers -> (12×18)/20 days.
-> (12×9)/10 days
->10.8 days.
so 10.8 days is your answer.
Hope it helps...
Regards;
Leukonov/Olegion
Since you provide no information about the median salary, i'm gonna use the national data, whcih is around $ 13,000 per year
Cost of education for 2 year = $30,000
Since he's still working in those 2 years, he'll earn = $ 26,000
Which means he just need to work for around half a year to cover the remaining $4,000 , so i think the answer is 2.5 years
hope this helps
All you have to do is multiply them all.
3*3*4*2=72
Step-by-step explanation:
RISE/RUN is an important rule...
f = 
= around 16.7 (3.s.f)
h = 
or 
= 10
i = 
= 30
