Painters

The first team of painters would paint the bridge in 15 days, the second in 10 days. After three days of working together, the second team goes out and continues only with the first team. How many days took the second team to finish painting the bridge?

Correct answer:

x =  7.5 d

Step-by-step explanation:

(151+101) 3+151x=1  (1/15+1/10) 3+1/15 x=1  2x=15  x=215=7.5  x=215=7.5=7.5 d



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







Tips for related online calculators
Looking for calculator of harmonic mean?
Looking for a statistical calculator?
Do you have a linear equation or system of equations and are 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: