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Deepanshu Bansal

· started a discussion

· 1 Months ago

Diameter given in ques ; solution assumes them as radius (Question: 233458.0 )

The question mentions 8cm and 6cm as outer and inner diameters resp. However, the solution has been solved taking them as radius.
The correct answer should be 440 c. cm.

Question:
A hollow cylindrical tube 20 cm long, is made of iron and its external and internal radii are 8 cm and 6 cm respectively. The volume of iron used in making the tube is (Take \(\pi=\cfrac{22}{7}\))
Options:
A) 1760 cu.cm
B) 880 cu.cm
C) 440 cu.cm
D) 220 cu.cm
Solution:

Ans: (a)

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