Question

A humming bird flies forward at 5m/min at the first and flies backward at 3m/min at the next minute how much time it takes to travel 93 m

Answer 1

Answer:

The lack of ability to fly backwards in most birs species is due to a function of its wings. Usually, birds have a wing structure that includes extra strong muscles topull their wings downward, and much weaker muscles designed to pull their wings back up - as they rely on wind resistance to do most of the work. While some birds may give the visual perception of flying backwards, they still lack the ability to do so without assistance from wind. Ospreys, kestrels, kingfishers, and cuckoos are often mistaken for magically flying backwards in this manner. Some birds can move backward

Explanation:

Answer 2

Explanation:

In the first minute, the bird flies 5m forward. In the 2nd minute it flies 3m backward. So in 2 minutes it flies 2m.

In the 3rd min, it covers 2m + 5m; i.e. 7m. In the 4 th minute it flies 3m backwards thereby making the total distance covered to be 7m -3m i.e. 4m.

Thus in the 6th minute it should have covered 6m, In the 8th, 8m and so on. So by 88mins it covers 88m and in the 89th min it again flies 5m forward to cover 93m. So the time taken to fly 93m is 89min.