alleryএকটি নৌকা 24 km 12 km/h এ যায় এবং 8 km/h এ ফিরে আসে। মোট ভ্রমণ সময়?
A4 ঘন্টা
B3 ঘন্টা
C5 ঘন্টা
D6 ঘন্টা
Answer & Solution
Correct answer: C. 5 ঘন্টা
বাহ্যিক যাত্রায় সময় লাগে 24 ÷ 12 = 2 ঘন্টা এবং ফিরতে সময় লাগে 24 ÷ 8 = 3 ঘন্টা, মোট 5 ঘন্টা।
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