Question

What is the speed of stream? I Sum of time taken by a boat in upstream and downstream is 46 hrs to cover distance 460 km in each. II Speed of boat in downstream is 50km/h. III Boat cover 25 km in 2 hr, while rowing in upstream

Q: Answer-What is the speed of stream? I Sum of time taken by a boat in upstream and downstream is...

From I, let the Upstream Speed x kmh, Let the Downstream Speed y kmh 460x 460y 46 1x 1y 110 From II, we will get, y 50, x 50 1050 10 12.5 kmh From III, we will get, x 252 12.5 y 12.5 1012.5 10 50 kmh Therefore Speed of Stream will be 50 12.52 18.75 kmh So, Any two statements are sufficient to answer the question

The following questions are accompanied by three statements I, II, and
III. You have to determine which statements(s) is/are sufficient/necessary to answer the questions.

A Any two statements are sufficient to answer the question

B Either I and II or II and III are sufficient to answer the question

C Either I and II or I and III are sufficient to answer the question

D Either I and III or II and III are sufficient to answer the question

E None of these

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