A spherical balloon is filled with 3536 π cubic meters of helium gas. – McqOptions

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1.	A spherical balloon is filled with 3536 π cubic meters of helium gas. If a leak in the balloon causes the gas to escape at the rate of 70 π cubic meters per minute, then the rate (in meters per minute) at which the radius of the balloon decreases 50 minutes after the leakage began is
A.	1/9
B.	1/2
C.	2/9
D.	35/18
Answer» E.

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