Question

Derek is competing in a 12 kilometer walk. it took him 30 minutes to complete the first 2.5 kilometers. At this rate, how many additional hours will it take him to complete the walk?a) 1 2/5 hrb) 1 9/10 hrc) 2 2/5 hrd) 4 4/5 hr

Answer 1

30 minutes to complete 2.5 km

let's find the rate in Kilometers per hour.

30 mins * 2 = 60 mins (1 hr), so

2.5 km * 2 = 5 km

Hence,

Rate = 5 km per hour

Already 2.5 km completed.