Question

Q89 7 experts and 5 trainees can complete a job
in 9 days while 4 experts and 15 trainees can
complete it in 12 days. How many days will
5 experts and 6 trainees need to complete
the job?
(A) 10
(B) 12
(C) 14
(D) 15​

Answer 1

Answer:

Let the total work to be done is 48 meters( LCM of 16, 24 and 8). Now Jake can dig (48/16) - 3 meters, Paul can dig (24/12) - 2 meters a day. Now all of them combined dug in 8 days so per day they dug 48/8 = 6 meters. So Of these 8 meters, Hari capacity is 1 meter.So he takes 48 /1 = 48 days to complete the digging job.