alleryایک کشتی ساکن پانی میں 12 km/h کی رفتار سے چلتی ہے۔ ندی ہے 3 km/h۔ 27 km بہاو اور پیچھے کا وقت؟
A4 h
B4.5 h
C4.8 h
D5 h
Answer & Solution
Correct answer: C. 4.8 h
ڈاؤن اسٹریم اور اپ اسٹریم کے اوقات 27/15 اور 27/9 گھنٹے ہیں، کل 4.8 گھنٹے۔
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