Acarpenter can install 8 sheets of drywall in 10 minutes. at this rate, how long does it take to install one sheet of drywall? how long will it take the carpenter to install 60 sheets?

a) 1.25 minutes; 1.25 hours
eliminate
b) 1.5 minutes; 1.5 hours
c) 2 minutes; 2 hours
d) 2.5 minutes; 2.5 hours

Answer

Find out the  how long does it take to install one sheet of drywall .

To prove

As given

A carpenter can install 8 sheets of drywall in 10 minutes.

8 sheets = 10 mintues

Now

Time taken for installing one sheets of drywall = 1.25 mintues.

Now Find out how long will it take the carpenter to install 60 sheets .

To prove

As given

A carpenter can install 8 sheets of drywall in 10 minutes.

8 sheets = 10 mintues

Now for 60 sheets.

As 1 hour = 60 mintues

Now convert 75 mintues into the hours.

 Time taken for installing 60 sheets = 1.25 hours.

Therefore the option (A) is correct.

Thus 1.25 minutes take to install one sheet of drywall and 1.25 hours take the carpenter to install 60 sheets .

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