A ferry can travel twice as fast when empty as when it is full. It travels 20 mile with full load, spends 1 hour for unloading and returns to its original port empty. It took 11 hours to complete the journey. What is the speed when the ferry is empty?

A 5
B 6
C 6.5
D None of these

Correct Answer: 6

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#গণিত #Modhumoti Bank Ltd #Modhumoti Bank ltd. - Probationary Officer - 21.04.2017 #distance & speed) #দূরত্ব ও গতিবেগ (Time #সময়

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