Sail E0 Webinar
Question
Tahir is standing 2 steps to the left of a red mark and 3 steps to the right of a blue mark. He tosses a coin. If it comes up heads, he moves one step to the right; otherwise he moves one step to the left. He keeps doing this until he reaches one of the two marks, and then he stops. At which mark does he stop?
1. He stops after 21 coin tosses.
2. He obtains three more tails than heads.
Options:
A .  Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
B .  Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C .  EACH statement ALONE is sufficient.
D .  BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
E .  Statement (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.
Answer: Option C
:
C
option (c)Statement A: We can find, there are 12 Tails and 9 Heads.After tosses he will reach at blue point. So statement A is sufficient.Statement B: 3 more Tails greater than Heads. So he will reach at blue point after tosses.So statement B is also sufficient.

Was this answer helpful ?
Next Question

Submit Solution

Your email address will not be published. Required fields are marked *

More Questions on This Topic :


Latest Videos

Latest Test Papers