Problema Solution
A crew will arrive in one week and began filming the city for a movie. The mayor is desperate to clean the city streets before filming begins. Two teams are available,one that requires 700 hours and one that requires 200 hours to clean. If the teams work together, how long will it take to clean all of the streets?
Answer provided by our tutors
let x = the hours needed to clean all the street if the teams work together
1/700 + 1/200 = 1/x
by solving we find
x = 1400/9
x = 155 hr 5*60/9 min
x = 155 hr 5*60/9 min
x = 155 hr 33.3 min
click here to see the step by step solution of the equation
it will take 155 hr 33.3 min to clean all of the streets together.