Question

Please can someone answer this question

Answer 1

Answer:

18%

Step-by-step explanation:

She could run in 3 minutes and 20 seconds = 200 seconds.

Three years later she runs in 2 mins 44 seconds = 164 seconds.

Now,

% Improvement = [(200 - 164)/200] * 100

                         = [36/200] * 100

                        = 18

Therefore,

There is an improvement of 18% in her time.

Hope it helps!