‘A’ is 8 years younger than ‘B’ and 7 years elder than ‘C’. If the present age of ‘B’ and ‘D’ is 20 years and 15 years, respectively, then find the ratio of present age of ‘C’ to present age of ‘D’.

Statements: Q ≤ R < A; R ≥ N > S; S ≥ T > U

Conclusions:

I. A > N

II. U < N

III. S ≥ Q

Statements: L > M > Z ≥ S < R = O < N

Conclusion 

I. N ≥ L                 

II. L > S

Statements: N > U < I ≤ R < D < A; K ≥ O = G > X = E > A

Conclusions:

I. R < E

II. K > D

III. U ≥ X

Statements:

C > D ≥ E ≤ F; Y ≥ Z ≥ A = C

Conclusion:

I. Y > F

II. F ≥ Y

Statements: K * D, D $ N, N % M, M © W

Statements: Q ≥ B > G = F ≥ J; W ≤ B = N < L.

Conclusions:

I. N > J

II. Q > L

Statements:

L ≤ J ≤ C = N; W ≥ X > L

Conclusions:

I. J ≤ X

II. X ˃ W

Statements: V & T, T # L, L $ Z, Z @ A

Conclusions: I. Z $ T                         II. Z & T