Problema Solution
One bricklayer works 3 times as fast as another bricklayer. Find the time it will take each individual to do the job alone, if it takes them 15 hours to do the job together
Answer provided by our tutors
suppose one completes in 3x days
then the fast worker will complete in x days
we get
1/x + 1/3x = 1/15
4/3x = 1/15
x = 4*15/3 = 20
so one worker completes in 60 days
and the fast one will complete in 20 days