Question

A works twice as fast as B. If they finish a piece of work
together in 24 days, then how long will each of them take to
complete the work?
O
(20,40)
O
(18, 36)
(36, 72)
(40, 80)​

Answer 1

1/ 2b + 1/b = 1/24

= 1+2 = 1/ 24

2b

3/ 2b= 1/ 24

2b= 24×3

b= 36

a= 18

Answer 2

Answer:

A can finish a piece of work in 36 days while B can finish a piece of work in 72 days.

Step-by-step explanation:

Since A is twice better than B

Therefore, B = 2A

1/A + 1/2A = 1/24

3/2A = 1/24

2A = 72

A = 36

Therefore, A = 36 and B = 2A = 72.

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