Question:
Which of the following vary inversely with each other?
(a) speed and distance covered.
(b) distance covered and taxi fare.
(c) distance travelled and time taken.
(d) speed and time taken.
Solution:
(d) speed and time taken.
Explanation: By the formula of speed we know;
Speed = distance/time
As we can see here, when the time decreases, the speed increases. Hence, they inversely proportional.