another math

[Dencology]

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so for this problem, i just set the r*3 with each other and i still don't get the ans. how would you do this?

 

[klutzy1987]

Answer is D.

Way to do this one is just set up a proportion, radius^3 of a/radius^3 of b

(432000)^3/(4000)^3=1250380/1. This is approximately 1250000:1

 

[far123]

so for this problem, i just set the r*3 with each other and i still don't get the ans. how would you do this?

I think D is the correct answer:
(432000)^3/4000^3=>108^3 it should be around 1250:1

 

[FutureInternist]

D is right although it's 1,250,000:1 🙂

 

[klutzy1987]

I think D is the correct answer:
(432000)^3/4000^3=>108^3 it should be around 1250:1

Yeah oops you are right I forgot that we were dealing with volume, i calculated the area lol. Answer is D then.