1
of a certain journey is covered at the rate of
3
71.
1
25 km/h. at the rate of 30 km/h and the rest
4
of 50 km/h. What is the a erage speed for the
whole journey?
(1) 30 km/h (2) 33 km/h
(3) 332 km/h (4) 32 km/h
72.
Answers
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0
Answer:
4) 32 km/ h
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