If sam proofreads 15 reports in 1 hour and paul proofreads 37 in 1 hour how long will it take to do 400 reports between them

Question

If sam proofreads 15 reports in 1 hour and paul proofreads 37 in 1 hour how long will it take for 400 to be done between them?

Answer 1

We can solve this problem by creating a mathematical equation using X as the amount of hours it will take sam and paul to reach 400 reports:

 

15X + 37X = 400

 

Combine your like terms on the left side of the equation

 

52X = 400

 

Then divide each side by 52 in order to isolate your variable of X which is time

 

X = 7.69 HOURS