alleryधारा के अनुकूल चाल 18 किमी/घंटा और धारा के प्रतिकूल चाल 10 किमी/घंटा होने पर, नदी की धारा की चाल क्या है?
A2 किमी/घंटा
B8 किमी/घंटा
C14 किमी/घंटा
D4 किमी/घंटा
Answer & Solution
Correct answer: D. 4 किमी/घंटा
धारा की चाल दोनों के अंतर की आधी होती है, (18 - 10) / 2 = 4 किमी/घंटा।
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