How 88.1÷1.47 = 59.9
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Find the distance for each section of the journey:
60 * 0.52 = 31.2km
30 * 0.24 = 7.2km
70 * 0.71 = 49.7km
The total distance traveled = 31.2 + 7.2 + 49.7 = 88.1km
The total time = 0.52 + 0.24 + 0.71 = 1.47h
The average speed = distance / time = 88.1 / 1.47 = 59.9kmph
Since the values in the question are to 2 signnificant figures I would round the answer to 2 significant figures also. So 60kmph.
i think... this was your full questn and solution.... if any doubt... mention in the coment box
60 * 0.52 = 31.2km
30 * 0.24 = 7.2km
70 * 0.71 = 49.7km
The total distance traveled = 31.2 + 7.2 + 49.7 = 88.1km
The total time = 0.52 + 0.24 + 0.71 = 1.47h
The average speed = distance / time = 88.1 / 1.47 = 59.9kmph
Since the values in the question are to 2 signnificant figures I would round the answer to 2 significant figures also. So 60kmph.
i think... this was your full questn and solution.... if any doubt... mention in the coment box
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