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Intern
Joined: 20 Jun 2021
Posts: 21
Given Kudos: 152
WE:Manufacturing and Production (Manufacturing)
Car A and Car B are at the opposite ends of a straight road.
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19 Sep 2021, 01:34
19 Sep 2021, 01:34
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65% (01:34) correct
34% (01:42) wrong based on 49 sessions
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Car A and Car B are at the opposite ends of a straight road. Car A moves towards Car B for 12 hours at a speed of 40 miles per hour, and then Car B starts moving towards Car A at a speed of 80 miles per hour. Both the cars keep moving towards each other maintaining their respective speeds till they meet.
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Quantity A |
Quantity B |
Total distance traveled by Car A |
Total distance traveled by Car B |
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Retired Moderator
Joined: 19 Nov 2020
Posts: 326
Given Kudos: 64
GRE 1: Q160 V152
Re: Car A and Car B are at the opposite ends of a straight road.
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19 Sep 2021, 02:32
19 Sep 2021, 02:32
1
distance travelled by car A = 40*(12+t)
distance travelled by car B = 80*t
total distance between the opposite ends = 40*(12+t)+80*t = 480+120*t
Case 1) both cars travel the same distance, 12+t=2t, t=12
Case 2) car A travels less distance than car B, 12+t < 2t, t>12
Case 3) car A travel more distance than car B, 12+t > 2t, t<12
IMO, answer is D
distance travelled by car B = 80*t
total distance between the opposite ends = 40*(12+t)+80*t = 480+120*t
Case 1) both cars travel the same distance, 12+t=2t, t=12
Case 2) car A travels less distance than car B, 12+t < 2t, t>12
Case 3) car A travel more distance than car B, 12+t > 2t, t<12
IMO, answer is D
Ahasunhabib999 wrote:
Car A and Car B are at the opposite ends of a straight road. Car A moves towards Car B for 12 hours at a speed of 40 miles per hour, and then Car B starts moving towards Car A at a speed of 80 miles per hour. Both the cars keep moving towards each other maintaining their respective speeds till they meet.
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Quantity A |
Quantity B |
Total distance traveled by Car A |
Total distance traveled by Car B |
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Re: Car A and Car B are at the opposite ends of a straight road.
[#permalink]
20 Sep 2021, 12:29
20 Sep 2021, 12:29
1
please eplain detail because i fail to understand that how can ans D.
here my thought process,
let consider 480 as distance between two car and car A and car B speed is ratio of 1:2. due speed difference will led the car B to travel more distance than car A rill meet each other. Thats ehy i think ans should be B.
here my thought process,
let consider 480 as distance between two car and car A and car B speed is ratio of 1:2. due speed difference will led the car B to travel more distance than car A rill meet each other. Thats ehy i think ans should be B.
