6th Class Mathematics Algebra Question Bank Algebra

  • question_answer
    DIRECTIONS: Passage ? 1 Read the passage(s) given below and answer the questions that follow. ? A combination of locks requires 3 numbers to open ? The second number is 2d + 5 greater than the first number. ? The third number is 3d - 20 less than the second number. ? The sum of the three numbers is 10 + 9. Product of first and third number is

    A)  \[{{a}^{2}}+25a\] 

    B)    \[ad+25\]

    C)  \[{{a}^{2}}+ad+25\]                   

    D)  \[{{a}^{2}}-ad+25a\]

    Correct Answer: D

    Solution :

         Product: \[(a)(a-d+25)\] \[={{a}^{2}}-ad+25a\]


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