A bird flies 1 kilometer in one minute. Can you express the distance covered by the bird in terms of its flying time in minutes? (Use $ t $ for flying time in minutes.)

Given:

A bird flies 1 kilometer in one minute.

To do:

We have to express the distance covered by the bird in terms of its flying time in minutes.

Solution:

Let the flying time in minutes be $t$.

The number of kilometers the bird flies in a minute $=1\ km$. 

This implies,

The distance covered by the bird in terms of its flying time in minutes $=$ Flying time in minutes $\times$ Number of kilometers the bird flies in one minute 

$=1\times t$

$=t$.

Therefore, the distance covered by the bird in terms of its flying time in minutes is $t$ km.