2nd Class Mathematics Shapes and Patterns Question Bank Patterns

  • question_answer
    What should be subtracted from each number of the pattern? Choose the correct option. 15, 13, 11, 9, ___ 20, 17, 14, 11, ___ 25, 20, 15, 10, ___ 50, 40, 30, 20, ___

    A) 7, 7, 15, 20     

    B)           7, 8, 15, 20  

    C)  7, 8, 5, 10      

    D)           7, 8, 16, 10

    Correct Answer: C

    Solution :

          15 - 2 = 13, 13 - 2 = 11, 11 ? 2 = 9, 9 - 2 = 7 20 ? 3 = 17, 17 ? 3 = 14, 14 ? 3 = 11, 11 ? 3 = 8 25 ? 5 = 20, 20 ? 5 = 15, 15 ? 5 =10, 10 ? 5 = 5 50 ? 10 = 40, 40 - 10 = 30, 30 ? 10 = 20, 20 ? 10 = 10


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