Question

2 buses are approaching each other on a long straight road, at a constant speed of 50 km/hr each. When the buses are 10 km apart, a fly in front of one bus flies at a speed of 100 km/hr towards the other bus. When it arrives just in front of that bus, it turns back towards the first bus. This goes on, till it is finally sandwiched between the buses. Find the total distance travelled by the fly:

Answer 1

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Answer 2

Answer:

10km

Explanation:

The buses meet with each other after a time interval of = 10/100= 0.1hr (time=distance/speed)

As, the the fly flies at a speed of 100km/hr so the distance travelled by the fly must be:-

Time for which the fly has travelled * speed of the fly while approaching its target which in this case is the bus

Distance = 0.1*100

= 10km