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Question

Direction: Study the information given below carefully and answer the questions that follow.

Dibakar starts walking in east direction from point M. After walking 3m he turns right from point N and walks for 6m till point O. He then turns right and walks for 7m and then turns left from point P and walks for 3m till point Q. He then turns left and walks for 11m and then turns left from point R and walks for 6m till point S and stops.

In which direction is point Q with respect to point M?

This question was previously asked in
ESIC UDC Mains MBT (30 Apr 2022)
The correct answer is

South-West

Solution Walkthrough

To determine the direction of point Q with respect to point M, we must carefully follow Dibakar's movements and track his position relative to the starting point M.

Dibakar's Movement Steps

Dibakar's journey can be broken down into sequential steps:

  1. Start at Point M: Dibakar begins his walk at point M.
  2. First Leg (M to N): He walks 3 meters in the East direction, reaching point N.
  3. Second Leg (N to O): At point N, he turns right. Since he was moving East, turning right means he now faces South. He walks 6 meters South to reach point O.
  4. Third Leg (O to P): At point O, he turns right again. Facing South, a right turn means he now faces West. He walks 7 meters West to reach point P.
  5. Fourth Leg (P to Q): At point P, he turns left. Facing West, a left turn means he now faces South. He walks 3 meters South to reach point Q.
  6. Subsequent Legs (Q to S): Dibakar continues walking for two more legs (11m East, then 6m North) to reach point S, but these movements do not affect the position of Q relative to M.

Calculating Position of Q relative to M

We can use a coordinate system to precisely track Dibakar's location. Let point M be the origin $(0,0)$. We'll consider the East direction as positive movement along the x-axis and the North direction as positive movement along the y-axis.

Movement Breakdown with Coordinates:

  • M to N: Dibakar moves 3m East. The coordinates of N are $(3,0)$.
  • N to O: Dibakar moves 6m South (which is negative y direction). The coordinates of O are $(3, 0 - 6) = (3,-6)$.
  • O to P: Dibakar moves 7m West (which is negative x direction). The coordinates of P are $(3 - 7, -6) = (-4,-6)$.
  • P to Q: Dibakar moves 3m South (negative y direction). The coordinates of Q are $(-4, -6 - 3) = (-4,-9)$.

Net Displacement Analysis:

The final coordinates of point Q relative to the starting point M $(0,0)$ are $(-4,-9)$.

  • The displacement along the x-axis is $-4$m. This means point Q is 4 meters West of point M.
  • The displacement along the y-axis is $-9$m. This means point Q is 9 meters South of point M.

Directional Conclusion

Since point Q is located 4 meters to the West and 9 meters to the South of point M, its position relative to M is in the South-West direction.

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Similar Questions

  1. In which direction is point S with respect to point O?

  2. What is the shortest distance between point N and point S?

  3. What is the distance between points B and H?

  4. What is the direction of point E from point A?


Important Questions from Direction and Distance

  1. Sita took an auto from her home in Andheri (A) to go to her college in Fatehpuri (F). Rather than continuing straight on the direct road to the college that had no turns, the auto driver took a diversion after 10 km and tumed right at Bandra (B) crossing, then at Colaba T- point (C) after 8 km turned left, again after covering 12 km turned left at Dalhousi Building (D) and soon after 8 km turned right at Elphinston point (E) and after covering 4 km reached Fatehpuri (F). Had the auto driver taken the direct route how much less distance would Sita have actually travelled between the starting point and the destination?

  2. Radha walks a distance of 9 m towards the South-East. Then she walks 15 m towards the West. From here, she walks 9 m towards the North-West. Finally she walks 6 m towards the East and stands at the point. How far is she standing from the starting point?

  3. According to the time by Nihaal's watch its half past one and the hour hand is pointing towards the north-east. Assuming that there is no change in Nihaal's position, in which direction would the minute hand point after 30 minutes?

  4. According to the time by Rohan's watch, it is half past 6 and the watch's hands are pointing to the south. In which of the given directions will the minute-hand point AFTER exactly 24 hours?

  5. According to the time by Rick's watch its quarter past eight. If the minute hand points towards the east, towards which direction would the hour hand point?

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