# logical rs

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Joined: 2006-06-14
Direction for Q1 to Q4

In the first round of a ball dance, females A, B, C and D dance with males P, Q, R and S respectively.

i. In any round, at least one dancer has to retain his/her partner from the previous round.
ii. In any round, at least one dancer has to retain his/her partner from the previous round.
iii. B changes partners in every round.
iv. C Changes partners in every alternate round and has the same partner in the 9th and the 10th rounds.
v. A takes S as a partner only when he is B’s partner in the preceding round.

Q1. If P is B’s partner in round 2, then in how many different ways can the dancers pair in round 3 ?
a. 4
b. 5
c. 6
d. 7

Q2. If Q is A’s partner in round 3, then who can be A’s partner in round 2?
a. P
b. Q
c. S
d. P or Q

Q3. If A’s partner in S in round 3, then Q’s partner can be:
a. B
b. C
c. D
d. C or D

Q4. If S is B’s partner in round 3, then in how many different ways can the dancers pair in round?
a. 4
b. 2
c. 5
d. 7