Math, asked by chjyothiprakash, 5 months ago

The monthly incomes of A and B are in the ratio 2:3 and their monthly expences are in the ratio 5:9. If each of them saves

Rs 600 per month, find their monthly incomes​

Answers

Answered by itzpikachu76
0

Step-by-step explanation:

Radius of the base of cylinder is 14 cm.

Volume of cylinder is 3080 cm³.

Step-by-step explanation:

Given:-

Curved surface area of cylinder is 440 cm².

Height of cylinder is 5 cm.

To find:-

Radius of base of cylinder.

Volume of cylinder.

Solution:-

We know,

\boxed{\sf \bold{Curved\: surface \: area \: of \: cylinder = 2 \pi r h}}

Curvedsurfaceareaofcylinder=2πrh

Where, r is radius of cylinder and h is height of cylinder.

Put the values :

\longrightarrow⟶ 2πrh = 440

\longrightarrow⟶ 2 × 22/7 × r × 5 = 440

\longrightarrow⟶ 44/7 × r × 5 = 440

\longrightarrow⟶ 44/7 × r = 440/5

\longrightarrow⟶ 44/7 × r = 88

\longrightarrow⟶ 44 × r = 88 × 7

\longrightarrow⟶ 44 × r = 616

\longrightarrow⟶ r = 616/44

\longrightarrow \purple{\boxed{\sf \bold{r = 14}}\star}⟶

r=14

Radius of base of cylinder is 14 cm.

Now,

\boxed{\sf \bold{ Volume \: of \: cylinder = \pi r^{2} h}}

Volumeofcylinder=πr

2

h

Put the values:

\longrightarrow⟶ 22/7 × (14)² × 5

\longrightarrow⟶ 22/7 × 196 × 5

\longrightarrow⟶ 21560/7

\longrightarrow \red{\boxed{\sf \bold{3080}}\star}⟶

3080

Therefore,

Volume of cylinder is 3080 cm³.

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