Multiple choice

Kumail leaves his house on his motorbike at a speed of 35 km/hr. After driving for 50 minutes, his motorbike runs out of fuel, so he gets into a cab. The cab is driving at a speed of 80 km/hr and Kumail gets off the cab after 80 minutes. How much distance does he travel in total?

  1. 135.9 km

  2. 115.3 km

  3. 133.3 km

  4. 151.6 km

  5. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Distance 1 = 35 km/hr * (50/60) hr = 35 * 5/6 = 29.166 km. Distance 2 = 80 km/hr * (80/60) hr = 80 * 4/3 = 106.666 km. Total distance = 29.166 + 106.666 = 135.833 km, which rounds to 135.9 km.

AI explanation

Total distance is the sum of the distance traveled on the motorbike and the cab, using the formula distance equals speed multiplied by time. The distance on the motorbike is 35 km/hr multiplied by (50/60) hours, which is 175/6 km or roughly 29.17 km. The distance in the cab is 80 km/hr multiplied by (80/60) hours, which is 320/3 km or roughly 106.67 km. The total distance is 175/6 + 320/3 = 815/6 km, which equals 135.833 km.

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