alleryસ્થિર પાણીમાં હોડી 12 કિમી/કલાકની ઝડપે આગળ વધે છે; પ્રવાહ 3 કિમી/કલાક છે. 27 કિમી ડાઉનસ્ટ્રીમ અને પાછળનો સમય?
A4 h
B4.5 h
C4.8 h
D5 h
Answer & Solution
Correct answer: C. 4.8 h
ડાઉનસ્ટ્રીમ અને અપસ્ટ્રીમ સમય 27/15 અને 27/9 કલાક છે, કુલ 4.8 કલાક.
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