senpaipro0 senpaipro0 27-04-2020 Mathematics contestada A mechanic can install carburetors in 3 cars every 4 hours. At that rate, how long will it take the mechanic to install carburetors in 5 cars? A. 6 hr. 20 min. B. 6 hr. 40 min. C. 7 hr. 15 min. D. 7 hr. 30 min. E. 7 hr. 45 min.