Question

please help:If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it

Answer 1

hi

Answer 2

please help me to solve this one

Answer 3

I think 12/11 of a day

Answer 4

not so sure

Answer 5

tell me what is your equation you have?

Answer 6

how much of the job is done by each person in one day?

Answer 7

1/2 1/4 and 1/16

Answer 8

S takes 4 days to do it alone; in 1 day S does 1/4 of the job

L takes 6 days to do it alone; in 1 day L does 1/6 of the job

T can do it all in 2 days; in 1 day T does 1/2 the job


How much is done in one day if they all work together?

Answer 9

1/2+1/4+1/6

Answer 10

very good :)

1/2 = 6/12
1/4 = 3/12
1/6 = 2/12
----------
11/12 is done in one day.

Answer 11

since the work is divided into 12 parts; and 11 parts get done each day we get:

11 * days = 12

days = 12/11

Answer 12

ok thanks

Answer 13

do you need that in hours and secs and such? or is that a good enough answer :)

Answer 14

yes

Answer 15

haha I was right...

Answer 16

you great

Answer 17

:)