alleryસ્થિર પાણીમાં 8 કિમી/કલાકની ઝડપ ધરાવતી હોડી 2 કિમી/કલાકના પ્રવાહ સાથે 30 કિમી જાય છે. પ્રવાહની દિશામાં આ મુસાફરી માટે કેટલો સમય લાગશે?
A2 કલાક
B5 કલાક
C3 કલાક
D4 કલાક
Answer & Solution
Correct answer: C. 3 કલાક
પ્રવાહની દિશામાં ઝડપ 10 કિમી/કલાક થાય છે, તેથી 30 / 10 = 3 કલાક.
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