1. 

What is the volume of 32 metre high cylindrical tank?

I.  The area of its base is 154 m2.

II. The diameter of the base is 14 m.

A. I alone sufficient while II alone not sufficient to answer
B. II alone sufficient while I alone not sufficient to answer
C. Either I or II alone sufficient to answer
D. Both I and II are not sufficient to answer
E. Both I and II are necessary to answer

Answer: Option C

Explanation:

Given, height = 32 m.

I gives, area of the base = 154 m2.

Volume = (Area of the base x Height) = (154 x 32) m3.

Thus, I alone gives the answer.

II gives, radius of the base = 7 m.

Volume = r2h = 22 x 7 x 7 x 32 m3
7
 = 4928 m3.

Thus, II alone gives the answer.

Correct answer is (C).