Question

Tarak is 2 steps left of red mark and 3 steps right of blue mark. Moves right on heads, left on tails. Stops when reaching a mark. Which mark does he stop at?
A. He stops after 21 coin tosses.
B. He gets 3 more tails than heads.

• A. The question can be answered by using one of the statements alone but not by using the other statement alone
• B. The question can be answered by using either of the statements alone
• C. The question can be answered by using both statements together but not by either statement alone
• D. The question cannot be answered on the basis of the two statements

Hint:

Net movement = (Heads − Tails) determines direction and stopping point in step problems.

Answer 1

The Correct Option is B

From A alone: 21 moves, but without net displacement info, cannot tell final position.
From B alone: More tails than heads means net left movement. Since he starts nearer red mark (2 steps), he must reach red mark first — this is sufficient.
Thus, either statement alone suffices. \[ \boxed{\text{Either alone is sufficient}} \]