We know that [volume of a sphere]=(4/3)*pi*r³ for r= 3 in calculate the volume of one <span>balloon </span>balloons=(4/3)*pi*r³-------> (4/3)*pi*3³----------> 113.04 in³
if the rate is 200 in³ --------------------> 1 minute 113.04 in³------------------------> X X=113.04/200------------> 0.5652