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Question: A car driver driving in fog, passes a pedestrian who was walking at the rate of 2 km/h in the same direction. The pedestrian could see the car for 6 min and it was visible to him up to a distance of 0.6 km. The speed of the car would be
- 8 km/h
- 800 m/h
- 200 m/h
- 15 km/h
- 23 km/h
Approach Solution 1
This is a problem-solving question for the GMAT. In order to provide an answer, the data provided in the questions must be analyzed. The technique may involve elements from other branches of mathematics. The way the options are presented is fairly close to the right response, therefore, guessing normally can result in errors. The question must be fully understood by the students, and they must approach the answer in the correct way.
Similarity of speed in one direction.
Automobile speed = x ad man = 2 kmph, distance = 0.6, and the time is 6 minutes.
We can state that 6 = (x-2) * 6/60,
where x = 8 KMPH.
B is the correct answer.
Similarity of speed in one direction.
Automobile speed = x ad man = 2 kmph, distance = 0.6, and the time is 6 minutes.
We can state that 6 = (x-2) * 6/60,
where x = 8 KMPH.
B is the correct answer.
Approach Solution 2
This is a problem-solving question for the GMAT. Here, in order to provide an answer, the data provided in the questions must be analyzed. The technique may involve elements from other branches of mathematics. The way the options are presented is fairly close to the right response, therefore, guessing normally can result in errors. The question must be fully understood by the students, and they must approach the answer in the correct way.
Let's now think about the relative speeds of the car and the pedestrian. The difference between the individual speeds of the car and the pedestrian while they are going in the same direction determines their relative speed:
Car speed (C) minus pedestrian speed (P) equals relative speed (R).
We must ascertain the vehicle's speed (C). The distance (D) the car travelled during the period (T) that the pedestrian noticed the car determines the relative speed (R):
R = D / T
Replace the specified values with:
C - 2 km/h equals 0.6 km and 0.1 hours.
2 km/h - C = 6 km/h
C equals 6 + 2 km/h
C = 8 km/h
So, the car is moving at a speed of 8 km/h.
The correct response is B.
Let's now think about the relative speeds of the car and the pedestrian. The difference between the individual speeds of the car and the pedestrian while they are going in the same direction determines their relative speed:
Car speed (C) minus pedestrian speed (P) equals relative speed (R).
We must ascertain the vehicle's speed (C). The distance (D) the car travelled during the period (T) that the pedestrian noticed the car determines the relative speed (R):
R = D / T
Replace the specified values with:
C - 2 km/h equals 0.6 km and 0.1 hours.
2 km/h - C = 6 km/h
C equals 6 + 2 km/h
C = 8 km/h
So, the car is moving at a speed of 8 km/h.
The correct response is B.
B is the correct answer.
Approach Solution 3
This is a problem-solving question for the GMAT. Here, in order to provide an answer, the data provided in the questions must be analysed. The technique may involve elements from other branches of mathematics. The way the options are presented is fairly near to the right response, therefore guessing normally can result in errors. The question must be fully understood by the students, and they must approach the answer in the correct way.
Now, let's consider the relative speed between the car and the pedestrian. When the car and pedestrian are moving in the same direction, their relative speed will be the difference of their individual speeds:
Relative speed (R) = Car's speed (C) - Pedestrian's speed (P)
We need to find the car's speed (C). The relative speed (R) is given by the distance (D) the car traveled during the time (T) the pedestrian saw the car:
R = D / T
Substitute the given values:
C - 2 km/h = 0.6 km / 0.1 hours
C - 2 km/h = 6 km/h
C = 6 km/h + 2 km/h
C = 8 km/h
So, the speed of the car is 8 km/h.
Now, let's consider the relative speed between the car and the pedestrian. When the car and pedestrian are moving in the same direction, their relative speed will be the difference of their individual speeds:
Relative speed (R) = Car's speed (C) - Pedestrian's speed (P)
We need to find the car's speed (C). The relative speed (R) is given by the distance (D) the car traveled during the time (T) the pedestrian saw the car:
R = D / T
Substitute the given values:
C - 2 km/h = 0.6 km / 0.1 hours
C - 2 km/h = 6 km/h
C = 6 km/h + 2 km/h
C = 8 km/h
So, the speed of the car is 8 km/h.
The appropriate answer is B.
“A car driver driving in fog, passes a pedestrian who was walking at the rate of 2km/h in the same direction" - is a topic of the GMAT Quantitative reasoning section of GMAT. This question has been borrowed from the book “GMAT Official Guide Quantitative Review”.
To understand GMAT Problem Solving questions, applicants must possess fundamental qualitative skills. Quant tests a candidate's aptitude in reasoning and mathematics. The GMAT Quantitative test's problem-solving phase consists of a question and a list of possible responses. By using mathematics to answer the question, the candidate must select the appropriate response. The problem-solving section of the GMAT Quant topic is made up of very complicated math problems that must be solved by using the right math facts.
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