Two masons

Two masons built the garage together - it took 18 days. If they worked independently, the other would work 15 days more than the first. For how many days would build the garage each mason himself?

Correct answer:

x =  30
y =  45

Step-by-step explanation:

x1+y1=181 y=x+15  x1+x+151=181  18(2x+15)=x(x+15) x221x270=0  a=1;b=21;c=270 D=b24ac=21241(270)=1521 D>0  x1,2=2ab±D=221±1521 x1,2=221±39 x1,2=10.5±19.5 x1=30 x2=9   Factored form of the equation:  (x30)(x+9)=0  x>0 x=30
y=x+15=45



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Are you looking for help with calculating roots of a quadratic equation?
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:

Units of physical quantities:

Themes, topics:

Grade of the word problem:

Related math problems and questions: