Question

the total cost of making spherical ball is ₹33,957 at the rate of ₹7 per cubic meter . what will be the radius of this ball ?
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Answer 1

Answer:

Step-by-step explanation:

The cost of making = ₹33957

Rate = 7$m^{-3}$

Volume of ball = $\frac{cost}{rate}$ = $\frac{33957}{7}$ = $4851m^{3}$

But volume of ball = $\frac{4}{3}$π$r^{3}$

On comparing,

   $\frac{4}{3}$π$r^{3}$ = 4851

       $r^{3}$ = 4851×3× 7 / 4×22

       $r^{3}$ = 1157.625

       $r^{}$ = 10.5m