David can finish painting the room in 6 hours, and his elder brother Antony can finish it in 4 hours. If both brothers paint the

Question

3 years ago

9

room together, how many hours will it take them?

1 answer:

erica [24] · Answer 1 · 2022-07-11T16:23:34+03:00

erica [24]3 years ago

7 0

Answer:

Step-by-step explanation:

1/6+1/4=5/12

5/12 of the job is done in 1 hour

so

5/12+5/12= 10/12

so 10/12 of the job is done in 2 hours

and then simplify 5/6 so then add 1/6

so it is done in 2 hours and 24 minutes