Question

if 3 men or 6 boys can finish a work in 20 days,how long will 4 men and 12 boys take to finish the same work​

Answer 1

Answer:

Step-by-step explanation:

see, 3 men or 6 boys = 20 days

⇒ 3m or 6b = 20

or, 3m = 6b

4m + 12b =?

now,

from , M×D = M'× D'

⇒6b ×20 = (4m +12b)×D'

⇒6b ×20 =(8b +12b)×D'

∵ (m =2b)

∴120b = 20b × D'

⇒D' =6 days

They will take 6 days to complete the same work.

Hope, this will help you :)

Answer 2

Answer:

Here is your answer.

Step-by-step explanation:

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