Question

If the volume of a cylinder is 3850 cubic cm and height is 25 cm, what is its radius? (Take π = 22/7)

A) 7 cms B) 14 cms C) 10 cms D) 3.5 cms

Answer 1

Answer:

correct answer → option A) 7cm

refer to the attachment for the solution.

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Answer 2

Answer:

$let \: radius = r \: cm$

$height = 25 \: cm$

$volume = 3850 \: {cm}^{3}$

$\pi {r}^{2}h = 3850$

$\\⟹\frac{22}{7} \times {r}^{2} \times 25 = 3850$

$\\⟹{r}^{2} = \frac{3850 \times 7}{22 \times 25}$

$⟹{r}^{2} = {7}^{2}$

$⟹r = 7$

$so \: radius = 7 \: cm$

$then \: correct \: answer \: is \: option \:A$