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This topic is not avialable

Sheetanshu Rawat

· started a discussion

· 1 Months ago

Wrong answer (Question: 364635.0 )

Wrong calculation in the end.

ANIRUDH

· started a discussion

· 1 Months ago

wrong answer (Question: 364635.0 )

your area should be 2175pi then it will give radius 15 cm
One thing I don't understand is that when there are always some questions wrong then how can someone get full marks this brings morale of
students down. Stop it.

Question:

A machine is in the shape of a right circular cylinder with a hemisphere on one end and a cone on the other. The height of the cylindrical part is 3 times the radius. The radius of cylindrical part, hemisphere and conical part is equal and the ratio of height and radii is 4 : 3 in cone. If surface area of the Machine is 2175 cm2, then find the radius. 

Options:
A)

15 cm

B)

16 cm

C)

14 cm 

D)

17 cm

Solution:

Ans:(a) 


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