A cylindrical container of depth 20 m and radius 0.7 m is painted for Rs.8800. If the painter takes Rs.40 per sq. meter to paint the cylindrical container, then find the CSA of the cylindrical vessel.

385

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192.5

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96.25

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770

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Solution

The correct option is C
96.25

Curved surface area (CSA) of the cylindrical vessel = 2 $π r d$
$\Rightarrow$ CSA = $π$ $\times$ 2 $\times$ $(\frac{7}{10})$ $\times$ 20
$\Rightarrow$ CSA = $\frac{22}{7}$ $\times$ 2 $\times$ $\frac{7}{10}$ $\times$ 20
$\Rightarrow$ $C S A$ = $88 m^{2}$

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A cylindrical container of depth 20 m and radius 0.7 m is painted for Rs.8800. If the painter takes Rs.40 per sq. meter to paint the cylindrical container, then find the CSA of the cylindrical vessel.

The correct option is C 96.25 Curved surface area (CSA) of the cylindrical vessel = 2πrd ⇒ CSA = π ×​ 2 ×(710) × 20 ⇒ CSA = 227 ×​ 2 ×​ 710 ×​ 20 ⇒ CSA =88 m2

The correct option is C
96.25

Curved surface area (CSA) of the cylindrical vessel = 2 $π r d$
$\Rightarrow$ CSA = $π$ $\times$ 2 $\times$ $(\frac{7}{10})$ $\times$ 20
$\Rightarrow$ CSA = $\frac{22}{7}$ $\times$ 2 $\times$ $\frac{7}{10}$ $\times$ 20
$\Rightarrow$ $C S A$ = $88 m^{2}$