Multiple choice

A bus travels 100 km in 2 hours. (a) How much time is required to cover 70 km, if the speed remains the same? (b) Find the distance covered by the bus in 5 hours, with the same speed.

  1. (a) 64 minutes (b) 240 km

  2. (a) 84 minutes (b) 250 km

  3. (a) 80 minutes (b) 250 km

  4. (a) 84 minutes (b) 450 km

  5. (a) 80 minutes (b) 259 km
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The speed is 100 km / 2 hours = 50 km/hr. (a) Time for 70 km = 70 / 50 = 1.4 hours = 84 minutes. (b) Distance in 5 hours = 50 * 5 = 250 km.

AI explanation

First, find the constant speed of the bus using the formula speed equals distance divided by time, so 100 km divided by 2 hours gives a speed of 50 km/hr. For part (a), the time required to cover 70 km is 70 divided by 50, which equals 1.4 hours; multiplying 1.4 by 60 gives 84 minutes. For part (b), the distance covered in 5 hours is 50 km/hr multiplied by 5 hours, which equals 250 km. The correct result is (a) 84 minutes and (b) 250 km.

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