International Maths Olympiad Forum By SOF Olympiad Trainer - Page 233

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Subject :IMO    Class : Class 4

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This is interesting.

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C

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The correct answer will be D

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Subject :IMO    Class : Class 8

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Option a obvi

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Subject :IMO    Class : Class 9

The given question is followed by three statements.
Study the statements carefully and decide which of the following statement(s) is/are necessary to answer the question. What is the total surface area of cone?
(I) The area of the base of the cone is 1386 cm2.
(II) The curved surface area of the cone is 2310 cm2.
(III) The volume of the cone is 3696 cm3.

AI and either II or III
BII and either I or III
CIII and either I or II
DAny two of the three


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