Question

A and B together can complete a piece of work in
4 days. If A alone can complete the same work in
12 days, in how many days can B alone complete
that work?
A. 6 days B. 8 days
C. 10 days
D. 9 days
A-​

Answer 1

Answer:

a.6 days

Step-by-step explanation:

it is the correct answer ❤️

Answer 2

A can complete work in 12 days •••(given)

A+B can complete work in 4days •••(given)

Therefore,

• 1 day's work of A = 1/12
• 1 day's work of A+B = 1/4

Now,

1 day's work of A + 1 day's work of B = 1 day's work of A+B

→ 1/12 + B = 1/4

→ B = 1/4 -1/12

→ B = 3-1/12

→ B = 2/12 = 1/6

Therefore,

• B will take 6 days to complete work.