16. A train travels 45/1/5 km every hour for the first 3/1/2 hours after leaving a station. After that it
travels 50/1/2km every hour for the next 2/1/2 hours. What distance does the train travel during
the six hours?
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Answer:
44.5 km
during first 3 1/2 hr distance travelled(s) = 45 1/3 × 3 1/2 = 37/2 km
during next 2 1/2 hr distace (s')= 50 1/2 × 2 1/2 = 26 km
total distance = s + s'= 44.5 km
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