Question

George is training to run a 10K race. At the beginning of his training, he can run

10 kilometers in 56 minutes.Each week that he trains, his time gets 1% faster.
If his goal is to finish the race in under 45 minutes, how many weeks should he train?
Show how you got your answer!

Answer 1

Answer: 20 weeks

Explanation:

George needs to improve his running time by 56 minutes - 45 minutes = 11 minutes.

Since he improves by 1% each week, he would need to train for 11 / (1% of his time) = 11 / (0.01 * 56) = 11 / 0.56 = 19.64 weeks.

Rounding up, George should train for 20 weeks.