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ATQ,
Let r and R be the radii of the bases of the cylinder and the cone, respectively. r/R =2/3 Let h and H be the heights of the cylinder and the cone, respectively. h/H =3/5 The formula for volume ratio: 
Substituting values: 
Hence, the ratio of the volumes is 4:5.
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is/are definitely true ...
Statements: P > R = S; T > S > U; Q < U = V
Conclusions:
I. Q < P
II. T > V
III. R ≥ V
What should come in the place of question mark (?) in the given expression so that the expression T > Z is definitely true and Y ≥ W is definitely...
Statements: V ≤ R ≥ Q; R ≤ N < Y; I > Y ≤ S
Conclusions:
I. V ≤ S
II. I > Q
III. S > N
Statement: P < Q; R ≥ S; R ≥ O; S > Q ≥ T
Conclusion:
I. Q > O
II. O > T
Statements: M < N = G > P, P ≥ Z ≥ Y
Conclusions:
I. N > Y
II.G > M
Statements: M = R ≥ S , N = O > Q, Q > W = A < S
Conclusions :I. N ≥ S
II. W > R
III. O ≤ S
...Statements: H > E > I < F; D < I ≤ J; G < N ≤ D
Conclusions:
I. N < H
II. F ≥ G
Statement: E < F ≤ G = H, I ≥ G ≤ J ≤ K
Conclusion: I. K > E II. H > K
...14. Statement: L ≥ X ≤ Z > Y ≤ A, Y = B ≥ C
Conclusion: I. C > A II. A ≥ C
...