Frtg C.

asked • 01/21/20

A cabinet maker used 3/4 gallons of varnish on 10 cabinets doors. At this rate, how many quarts of varnish are required for 25 cabinet’s

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Anita A. answered • 01/21/20

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Set up the proportion:


.75 qts/10 doors = x qts/25 doors


Cross multiply to get


(.75•25) = 10x


18.75 = 10x


X = 1.875 qts.

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Anita A.

Or 1 7/8 qts
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01/21/20

Ashley H.

One thought. 3/4 gallons is 3 quarts. Why did you put .75 quarts instead of 3 quarts?
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01/22/20

Anita A.

Sorry, just didn't note the units carefully.
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01/22/20

Ashley H.

You labeled them right. My thought is if it takes 3 quarts for 10 doors, how does it take less than 2 for 25 doors?
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01/22/20

CHERYL S.

First step is to convert gallons to quarts. There are 4 quarts in 1 gallon, so 3/4 gallon = 3 quarts. Then set up a proportion: 3 qts/10 doors = x qts/25 doors and cross-multiply: 3 x 25 = 10x. Then solve for x: x=7.5.
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01/22/20

Ashley H.

yep. i was just about to rework it showing that
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01/22/20

Anita A.

My mistake was that I used 3/4 quart instead of 3/4 gallons . Cheryl has it correctly done.
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01/23/20

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