alleryएक नाव की धारा के अनुकूल चाल 18 किमी/घंटा और धारा के प्रतिकूल चाल 10 किमी/घंटा है। शांत जल में इसकी चाल क्या है?
A8 किमी/घंटा
B14 किमी/घंटा
C16 किमी/घंटा
D12 किमी/घंटा
Answer & Solution
Correct answer: B. 14 किमी/घंटा
शांत जल में चाल दोनों का औसत होती है, (18 + 10) / 2 = 14 किमी/घंटा।
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