Due to a cyclone, a tree is broken and makes an angle of 30º with the ground. The distance between the root and the tip of the tree that touches the ground is 20 m. What is the height of the tree?

If the expressions, ′X < C ≤ N > E ′, ′N ≥ O′ and ′W ≥ C′ are true then which of the following combinations will be definitely true?

Statements:

B < C ≤ I = O; C ≥ J ≥ K ≥ N; Z ≤ M ≤ N

Conclusions:

I) O > Z

II) O = Z

Statements: D = B ≤ I < L ≥ M = R; T = U ≥ L

Conclusion: I. D < U II. B = T

Statements:          N # L,      L @A,     A % I,     I & E

Conclusions :         

Statements: 

A $ B * X © Y @ Z 

Conclusions: 

I. X @ Z 

 II. Z * A 

III. Z % X

Statements:   A % I, I  *  Q, Q % R, R $ M

Conclusions :

I.  M # I

II. M # Q

III. I # R

Statement: C < X ≤ B > E < L < I

Conclusion: I. X > L           II. B > C

Statements:       K @ L; M & O, N % L, K $ O

Conclusions:     

I. O @ L

II. M @ L             

Statements:  J @ R % S % B; S $ Y $ Z