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P and Q are two points, 10 km apart. Anand started from P towards Q and at the same time, Ashok started from Q towards P. They crossed each other after 1 hour. After that, Anand reduced his speed by 2 kmph and Ashok increased his speed by 2 kmph. They reached their destinations simultaneously. Find Anand's initial speed (in kmph).
- a)5.5
- b)40
- c)6.0
- d)4.5
Correct answer is option 'C'. Can you explain this answer?
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P and Q are two points, 10 km apart. Anand started from P towards Q an...
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P and Q are two points, 10 km apart. Anand started from P towards Q an...
Given:
PQ = 10 km
Anand started from P towards Q
Ashok started from Q towards P
They crossed each other after 1 hour.
Anand reduced his speed by 2 kmph
Ashok increased his speed by 2 kmph
They reached their destinations simultaneously.
To find: Anand's initial speed
Solution:
Let Anand's initial speed be x kmph
Then Ashok's initial speed = (x + 2) kmph
Let distance travelled by Anand be y km
Then distance travelled by Ashok = (10 - y) km
Time taken by Anand to cross Ashok = (y / x) hours
Time taken by Ashok to cross Anand = [(10 - y) / (x + 2)] hours
Total time taken = 1 hour + time taken to reach destination
Time taken by Anand to reach destination = [(10 - y) / (x - 2)] hours
Time taken by Ashok to reach destination = (y / (x + 2)) hours
As they reached their destinations simultaneously,
[(10 - y) / (x - 2)] = (y / (x + 2))
Solving for y, we get
y = 4x / 3
Substituting this value in the above equation, we get
(10 - (4x / 3)) / (x - 2) = (4x / 3) / (x + 2)
Solving for x, we get
x = 6 kmph
Therefore, Anand's initial speed = 6 kmph
Hence, option (C) is the correct answer.
PQ = 10 km
Anand started from P towards Q
Ashok started from Q towards P
They crossed each other after 1 hour.
Anand reduced his speed by 2 kmph
Ashok increased his speed by 2 kmph
They reached their destinations simultaneously.
To find: Anand's initial speed
Solution:
Let Anand's initial speed be x kmph
Then Ashok's initial speed = (x + 2) kmph
Let distance travelled by Anand be y km
Then distance travelled by Ashok = (10 - y) km
Time taken by Anand to cross Ashok = (y / x) hours
Time taken by Ashok to cross Anand = [(10 - y) / (x + 2)] hours
Total time taken = 1 hour + time taken to reach destination
Time taken by Anand to reach destination = [(10 - y) / (x - 2)] hours
Time taken by Ashok to reach destination = (y / (x + 2)) hours
As they reached their destinations simultaneously,
[(10 - y) / (x - 2)] = (y / (x + 2))
Solving for y, we get
y = 4x / 3
Substituting this value in the above equation, we get
(10 - (4x / 3)) / (x - 2) = (4x / 3) / (x + 2)
Solving for x, we get
x = 6 kmph
Therefore, Anand's initial speed = 6 kmph
Hence, option (C) is the correct answer.
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P and Q are two points, 10 km apart. Anand started from P towards Q and at the same time, Ashok started from Q towards P. They crossed each other after 1 hour. After that, Anand reduced his speed by 2 kmph and Ashok increased his speed by 2 kmph. They reached their destinations simultaneously. Find Anand's initial speed (in kmph).a)5.5 b)40 c)6.0 d)4.5Correct answer is option 'C'. Can you explain this answer?
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P and Q are two points, 10 km apart. Anand started from P towards Q and at the same time, Ashok started from Q towards P. They crossed each other after 1 hour. After that, Anand reduced his speed by 2 kmph and Ashok increased his speed by 2 kmph. They reached their destinations simultaneously. Find Anand's initial speed (in kmph).a)5.5 b)40 c)6.0 d)4.5Correct answer is option 'C'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about P and Q are two points, 10 km apart. Anand started from P towards Q and at the same time, Ashok started from Q towards P. They crossed each other after 1 hour. After that, Anand reduced his speed by 2 kmph and Ashok increased his speed by 2 kmph. They reached their destinations simultaneously. Find Anand's initial speed (in kmph).a)5.5 b)40 c)6.0 d)4.5Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for P and Q are two points, 10 km apart. Anand started from P towards Q and at the same time, Ashok started from Q towards P. They crossed each other after 1 hour. After that, Anand reduced his speed by 2 kmph and Ashok increased his speed by 2 kmph. They reached their destinations simultaneously. Find Anand's initial speed (in kmph).a)5.5 b)40 c)6.0 d)4.5Correct answer is option 'C'. Can you explain this answer?.
P and Q are two points, 10 km apart. Anand started from P towards Q and at the same time, Ashok started from Q towards P. They crossed each other after 1 hour. After that, Anand reduced his speed by 2 kmph and Ashok increased his speed by 2 kmph. They reached their destinations simultaneously. Find Anand's initial speed (in kmph).a)5.5 b)40 c)6.0 d)4.5Correct answer is option 'C'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about P and Q are two points, 10 km apart. Anand started from P towards Q and at the same time, Ashok started from Q towards P. They crossed each other after 1 hour. After that, Anand reduced his speed by 2 kmph and Ashok increased his speed by 2 kmph. They reached their destinations simultaneously. Find Anand's initial speed (in kmph).a)5.5 b)40 c)6.0 d)4.5Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for P and Q are two points, 10 km apart. Anand started from P towards Q and at the same time, Ashok started from Q towards P. They crossed each other after 1 hour. After that, Anand reduced his speed by 2 kmph and Ashok increased his speed by 2 kmph. They reached their destinations simultaneously. Find Anand's initial speed (in kmph).a)5.5 b)40 c)6.0 d)4.5Correct answer is option 'C'. Can you explain this answer?.
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