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Data Sufficiency (DS) | Re: It costs $2,250 to fill right circular cylindrical Tank R with a certa

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tank r cost = 2250 $ is same as the vol of tank - 2250 ; pi * r^2 *h = 2250
now for tank S we need its r and h values
#1
Dr= 2Ds
not sufficient as h is missing radius of s = radius of R /4
#2
h is same , r is missing
from 1 & 2
pi* r2*h /4 = 2250/4 ; 562.5$
IMO C


Bunuel wrote:

It costs $2,250 to fill right circular cylindrical Tank R with a certain industrial chemical. If the cost to fill any tank with this chemical is directly proportional to the volume of the chemical needed to fill the tank, how much

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