The top of a conical container has a circumference of 308 m. Water flows i

Question

The top of a conical container has a circumference of 308 m. Water flows in at a rate of 12 m

^{3}

every 2 secs. When will the container be half filled, if its depth is 12m.

Options:

A . 42 min

B . 68 min

C . 54 min

D . 82 min

Answer: Option A
:
A
Ans:a 2

π

r=3082

\times

(\frac{22}{7}) \times r

= 308Find half volume of conical container.
Time reqd:

\frac{v o l o f \frac{1}{2} c o n t a i n e r}{f l o w r a t e}

\frac{15078.28}{6}

= 2520;

\frac{2520}{60}

=42min

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