What is the total cost of painting a cone at the rate of 20 Rs per square metre Statement I The radi...........

Quantitative Aptitude ( CCS) Data Sufficiency

What is the total cost of painting a cone at the rate of 20 Rs per square metre?

Statement I: The radius and the slant height of the flask are 14 m and 12 m respectively

Statement II: The area of the base of cone is 154 sq. m and its height is 7 m.

If the data in statement I alone is sufficient to answer the question.

If the data in statement II alone is sufficient to answer the question.

If the data either in statement I alone or statement II alone are sufficient to answer the question.

If the data given in both I and II together are not sufficient to answer the question.

If the data in both the statements I and II together are necessary to answer the question.

From statement I, r = 14 m,

l = 12 m, so cost of painting = 20*(?rl)
From I: ?r² = 154,

so r can be calculated, h = 7 m,

so l = √ r² + h², so l can also be calculated.
Cost of painting = 20*(?rl)

Hence, option 3 is the correct answer.

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