The distance between Delhi and Agra is 200 km. Suppose you are traveling from…
2023
The distance between Delhi and Agra is 200 km. Suppose you are traveling from Delhi to Agra by a car. If you can maintain an average speed of 90 km/hr for the first 120 km and 40 km/hr for the remaining distance, how much time will you take, on average, to reach Agra?
- A.
3 hr 20 min
- B.
3 hr 30 min
- C.
4 hr 45 min
- D.
More than one of the above
- E.
None of the above
Attempted by 5 students.
Show answer & explanation
Correct answer: A
To find the total time taken to travel from Delhi to Agra, we calculate the time for each segment of the journey separately and then add them.
Step 1: Time for first 120 km at 90 km/hr:
Time = Distance / Speed = 120 km / 90 km/hr = 1.333 hr = 1 hour 20 minutes.
Step 2: Remaining distance = 200 km - 120 km = 80 km.
Step 3: Time for 80 km at 40 km/hr:
Time = 80 km / 40 km/hr = 2 hours.
Step 4: Total time = 1 hour 20 minutes + 2 hours = 3 hours 20 minutes.
हिन्दी उत्तर:
दिल्ली से आगरा तक यात्रा करने में लगने वाला कुल समय दो भागों में विभाजित होता है।
चरण 1: पहले 120 किमी के लिए 90 किमी/घंटा की गति से समय निकालें:
समय = दूरी / गति = 120 किमी / 90 किमी/घंटा = 1.333 घंटे = 1 घंटा 20 मिनट।
चरण 2: शेष दूरी = 200 किमी - 120 किमी = 80 किमी।
चरण 3: 80 किमी के लिए 40 किमी/घंटा की गति से समय निकालें:
समय = 80 किमी / 40 किमी/घंटा = 2 घंटे।
चरण 4: कुल समय = 1 घंटा 20 मिनट + 2 घंटे = 3 घंटे 20 मिनट।
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