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Arithmetic Aptitude :: Boats and Streams

Directions To Solve

Each of the questions given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements and

  • Give answer (A) if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.
  • Give answer (B) if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
  • Give answer (C) if the data either in Statement I or in Statement II alone are sufficient to answer the question.
  • Give answer (D) if the data even in both Statements I and II together are not sufficient to answer the question.
  • Give answer(E) if the data in both Statements I and II together are necessary to answer the question.

  1.  A boat takes a total time of three hours to travel downstream from P and Q and upstream back from Q to P. What is the speed of the boat in still water?

     I . The speed of the river current is 1 km per hour.

     II.The distance between P and Q is 4 km.

     

  2. A.

    I alone sufficient while II alone not sufficient to answer

    B.

    II alone sufficient while I alone not sufficient to answer

    C.

    Either I or II alone sufficient to answer

    D.

    Both I and II are not sufficient to answer

    E.

    Both I and II are necessary to answer


  3. What is the speed of the boat in still water?

    I. The speed downstream is 12 kmph.

    II.The speed upstream is 4 kmph.

    III.In a to and fro journey between two points, the average speed of the boat was 6 kmph.

  4. A.

    I and II only

    B.

    All I, II and III

    C.

    III, and either I or II

    D.

    Any two of the three

    E.

    None of these


  5. What is the speed of the boat in still water?

     I. It takes 2 hours to cover the distance between A and B downstream.

     II. It takes 4 hours to cover the distance between A and B upstream.

  6. A.

    I alone sufficient while II alone not sufficient to answer

    B.

    II alone sufficient while I alone not sufficient to answer

    C.

    Either I or II alone sufficient to answer

    D.

    Both I and II are not sufficient to answer

    E.

    Both I and II are necessary to answer