Question

A,BandC can polish the floor together in 4 days. B alone can polish it in 10 days and c alone can polish it in 12 days. in how many days will a do this work alone
guys answer is 15 days okk but you give me solutions plz​

Answer 1

Answer:

34 2/7 days.

Step-by-step explanation:

A and B can polish the floors in 20 days.

So, in 1 day, they can polish 1/20 of the number of floors.

B can do 1/4 of it in 12 days.

In 1 day B can do 1/48 of it in 1 day.

So, A can do 1/20 - 1/48 = 7/240 of the work.

A alone can finish the whole work in 240/7 = 34 2/7 days.

Please mark me as the brainliest

Answer 2

Answer:

15/11

Step-by-step explanation:

ABC can polish the floor in 4days

B=1/10

C= 1/12

1/10+1/12

x+6+5

60 =11/60

11/60 ÷4

= 15/11 answer