Question

A can do a job in 15 minutes, B takes 20 minutes
while Cakes 30 minutes to do the same job. All three
been working together. A leaves after 2 minutes
leaving B and C to continue working together. B
Teaves 4 minutes after that leaving to finish the jo
How much more time will take to finish the job?​

Answer 1

Answer:

7days

Step-by-step explanation:

thanks for the question

Answer 2

Answer:

11 mins

Step-by-step explanation:

TW = LCM(15,20,30) = 60 units

In 2min (A+B+C ) together does

2 ×(4+3+2) = 18units

A leaves,

in 4 mins ,(B+C )together does

= 4×5 = 20 units

remaining work = 22 units

C will finish it in = 22/2 = 11mins