Multiple choice

If a man takes 4 hours to cover a distance of 15 km, how much time will be needed to cover 63 km at the same speed?

  1. 12 hours 36 minutes

  2. 16 hours 48 minutes

  3. 16 hours 4 minutes

  4. 15 hours 32 minutes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Speed = 15 km / 4 hours = 3.75 km/hr. Time for 63 km = 63 / 3.75 = 16.8 hours. 0.8 hours = 0.8 * 60 = 48 minutes. Total = 16 hours 48 minutes.

AI explanation

The speed of the man can be found using the formula speed equals distance divided by time, which gives 15 divided by 4, or 3.75 km/hr. To cover 63 km at this speed, the time required is 63 divided by 3.75, which results in 16.8 hours. Converting the decimal to minutes gives 16 hours and 48 minutes.

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