Multiple choice

If Ram walks 40 km at 5 km/hr, he will be late by 1 hour and 20 minutes. If he walks at 8 km per hr, how early from the fixed time will he reach? यदि राम 40 किमी की यात्रा 5 किमी /घंटे से तय करता है तब वह 1 घंटा 20 मिनट की देरी से पहुँचता है यदि वह 8 किमी/घंटे से चले तब वह कितनी देर पहले पहुंच जायेगा ?

  1. 1 hour and 15 minutes 1 घंटे तथा 15 मिनट

  2. 1 hour and 25 minutes 1 घंटे तथा 25 मिनट

  3. 1 hour and 40 minutes 1 घंटे तथा 40 मिनट

  4. 1 hours and 30 minutes 1 घंटे तथा 30 मिनट

  5. None of these इनमे से कोई नहीं
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C Correct answer
Explanation

At 5 km/hr, Ram takes 40/5 = 8 hours, which is 1 hour 20 minutes late. So the scheduled time is 8 hours - 1 hour 20 minutes = 6 hours 40 minutes. At 8 km/hr, he takes 40/8 = 5 hours. The difference from scheduled time is 6 hours 40 minutes - 5 hours = 1 hour 40 minutes early.

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