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The mass of 1 cubic meter of a substance is 800 kilograms under certain conditions. What is the volume, in cubic centime

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by M7MBA » Thu Nov 18, 2021 10:09 am
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The mass of 1 cubic meter of a substance is 800 kilograms under certain conditions. What is the volume, in cubic centimeters, of 1 gram of this substance under these conditions? (1 kilogram = 1,000 grams and 1 cubic meter = 1,000,000 cubic centimeters)

(A) 0.80
(B) 1.25
(C) 8.00
(D) 12.50
(E) 80.00

Answer: B

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Re: The mass of 1 cubic meter of a substance is 800 kilograms under certain conditions. What is the volume, in cubic cen

by Brent@GMATPrepNow » Thu Nov 18, 2021 3:10 pm
M7MBA wrote: ↑
Thu Nov 18, 2021 10:09 am
 The mass of 1 cubic meter of a substance is 800 kilograms under certain conditions. What is the volume, in cubic centimeters, of 1 gram of this substance under these conditions? (1 kilogram = 1,000 grams and 1 cubic meter = 1,000,000 cubic centimeters)

(A) 0.80
(B) 1.25
(C) 8.00
(D) 12.50
(E) 80.00

Answer: B

Source: GMAT Prep
GIVEN: 1 cubic METER of the substance weighs 800 KILOGRAMS
1 kg =1,000 grams, so we can write: 1 cubic METER of the substance weighs 800,000 GRAMS
1 cubic meter = 1,000,000, so we can write: 1,000,000 cubic CENTIMETERS of the substance weighs 800,000 GRAMS

What is the volume in cubic centimeters of 1 gram of this substance under these conditions?
Take last line and divide both values by 800,000 to get: 1,000,000/800,000 cubic CENTIMETERS of the substance weighs 800,000/800,000 GRAMS
Simplify to get: 1.25 cubic CENTIMETERS of the substance weighs 1 GRAM

Answer: B

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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