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7th Class Mathematics Rational Numbers Question Bank Rational Number

  • question_answer
    Rohit, Peter and Santosh walk around a circular park. They take . \[\frac{1}{3}h,\frac{2}{5}h,\]and \[\frac{5}{12}h\]to complete one round. What is the total time taken by them to complete a round in minutes?

    A) 79 minutes  

    B) 50 minutes

    C) 60 minutes  

    D) 69 minutes  

    Correct Answer: D

    Solution :

      Total time taken by Rohit, Peter and Santosh to walk around a circular park \[=\left( \frac{1}{3}+\frac{2}{5}+\frac{5}{12} \right)h\] \[=\frac{69}{60}\times 60\]minutes = 69 minutes


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