A boat takes 5 hours to travel 45 km upstream and 3 hours to travel the same distance downstream. What is the speed of the stream?
ক) 2 km/h
খ) 3 km/h
গ) 4 km/h
ঘ) 5 km/h
Related Questions
ক) Tk. 14000
খ) Tk. 16000
গ) Tk. 18000
ঘ) Tk. 20000
ক) 24
খ) 42
গ) 36
ঘ) 48
ক) x² + y²
খ) 2x² - y²
গ) 10x²y²
ঘ) x²/y²
ক) No change
খ) 5% increase
গ) 10% decrease
ঘ) 20% increase
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