3.
A person divides his total route of journey into three
equal parts and decides to travel the three parts with
speeds of 20, 25 and 40km/hr respectively. Find his
average speed during the whole journey?
(b) 26 km/hr
(c) 25 – km/hr
(d) 25 km/hr
(a) 262 km/hr
Answers
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Answer:
c.25kmper hour
Explanation:
20+25+40÷3
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