TIME AND WORK Q2
A company has a job to prepare certain number cans and there are three machines A, B and C for this job. A can complete the job in 3 days, B can complete the job in 4 days, and C can complete the job in 6 days. How many days will the company take to complete the job if all the machines are used simultaneously?
a) 4 days
b) 4/3 days
c) 3 days
d) 12 days
If they work together, then total work done in single day = 1 /3 + 1/ 4 + 1/ 6 = 9 /12
So 9 /12 work is done in 1 day
Hence unit work will be done in 12 /9 or 4/3 days.Write Here