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6th Class Mathematics Knowing our Numbers Question Bank Number System

  • question_answer
    Shivam was asked to obtain the sum of all the prime numbers between 10 and 40. He found the sum as 180. Which of the following statement is correct?

    A)  He added one extra prime number between 10 and 20.

    B)  He missed one prime number between 10 and 20.

    C)  He missed one prime number between 20 and 30.

    D)  None of these

    Correct Answer: D

    Solution :

         Prime numbers between 10 and 40 are 11, 13, 17, 19, 23, 29, 31, 37. Their sum is 180.


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