Question

In the local community center's carpentry club, 3 children can build a model of a boat in 10 days. Working together, 5 adults can build the same model in 3 days. At the same rates, if 2 children and 2 adults work together ideally, how many days will it take them to build the boat model?

Answer 1

Answer:

They will build in 5 days

Step-by-step explanation:

1 kid - 30 days = 1 boat, 2kid = 15 days = 1 boat

1 adult = 15 days = 1 boat, 2 adults = 15 days = 2 boats

2kid + 2 adults = 15 days = 3 boats, then 1 boat in 5 days

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Answer 2

Answer:Number of days they will take to build the boat model  $=$ $\frac{15}{3}$

                                                                                                          $= 5 days$

Step-by-step explanation:

Given: In the local community center's carpentry club, 3 children can build a model of a boat in 10 days. Working together, 5 adults can build the same model in 3 days.

To find: We have to find how many days will it take them to build the boat model.

Step 1: As 3 children can build a model of a boat in  in 10 days.

∴                1 children can build a model of a boat in in 30 days.

Step 2: As 5 adults can build the same model of a boat in in 3 days.

∴                 1 adult can build the same model of a boat in 15 days.

Step 3: If 2 children work together to build a model of a boat, so they will take 15 days to build 1 boat.

i.e.             2 children = 15 days

Step 4: If 2 adults work together to build a model of a boat. So they will take 15 days to build 2 boat.

i.e.             2 adults = 15 days

Step 5: If 2 children and  2 adults work together. So they will take 15 day to build 3 boat.

i.e.              2 children +  2 adults = 15 days =  3 boats

∴ Number of days they will take to build the boat model  $=$ $\frac{15}{3}$

                                                                                               $= 5 days$

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