Amit travelled a distance of 50 km in 9 hours. He travelled partly on foot at 5 km/h and partly by bicycle at 10 km/h. The distance travelled on the bicycle is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e 10 km
Let the distance covered on bicycle be x m.
Total time taken = 9 hours
⇒ 9 = x / 10 + (50 - x) / 5
⇒ 90 = -x + 100
⇒ x = 10 km