Photographic film is manufactured by applying a very thin layer of

Question

Photographic film is manufactured by applying a very thin layer of a viscous solution, called a melt, to a transparent, inert support material. If 25 cubic centimeters of melt is applied per square meter of support material is an even layer, what is the thickness of the layer, in centimeters? (1 meter = 100 centimeters)

A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025

A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025

Bunuel · Accepted Answer

Photographic film is manufactured by applying a very thin layer of a viscous solution, called a melt, to a transparent, inert support material. If 25 cubic centimeters of melt is applied per square meter of support material is an even layer, what is the thickness of the layer, in centimeters? (1 meter = 100 centimeters)

A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025

A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025

We're asked to find the thickness of the layer in  centimeters , while the area is given in  square meters . Thus, we need to convert 1 square meter into square centimeters:

1 square meter = 100 * 100 square centimeters = 10^4 square centimeters.

25 cubic centimeters of melt applied to the area of 10^4 square centimeters will result in a thickness of 25/10^4 = 0.0025 centimeters.

Answer: E.

gmatophobia · Answer

Volume = Area * thickness

25 = 100 * 100  * thickenss

thickness =  25 * 10^{-4}

Option E

illegallyblonde · Answer

Bunuel  If I solve it like this:  \frac{25 cm^3}{1 m^2}  =  \frac{25 cm*cm*cm }{ 100 cm*100 cm}  =  \frac{25 cm }{ 10000}  = 0.0025 cm
Is that right?

HarshavardhanR · Answer

https://gmatclub.com/forum/download/file.php?id=84962 --- Harsha GMAT-Club-Forum-zurncs1l.png

svsivakrishna · Answer

Given: Photographic film is manufactured by applying a very thin layer of a viscous solution, called a melt, to a transparent, inert support material. If 25 cubic centimeters of melt is applied per square meter of support material is an even layer, what is the thickness of the layer, in centimeters? (1 meter = 100 centimeters)

Applied 25 cm^3 per meter ^2

Thickness = 25/(100*100) = 0.0025.

Option E

Applied 25 cm^3 per meter ^2

Thickness = 25/(100*100) = 0.0025.

Option E

Photographic film is manufactured by applying a very thin layer of

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Photographic film is manufactured by applying a very thin layer of

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615 to 715 in 15 Days (Ria's Strategies)

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