alleryஒரு மலையேறுபவர் 12 km 4 km/h இல் நடந்து 1 h. ஓய்வு உட்பட சராசரி வேகம்?
A4 km/h
B3 km/h
C2 km/h
D5 km/h
Answer & Solution
Correct answer: B. 3 km/h
நடைபயிற்சிக்கு 12 ÷ 4 = 3 மணிநேரம் ஆகும், எனவே மீதமுள்ளவற்றையும் சேர்த்து சராசரி வேகம் 12 ÷ 4 = 3 km/h.
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