8th Class Mathematics Related to Competitive Exam Question Bank Mathematical Operations

  • question_answer
    If \[\text{a o}|b\square c\] means \[\text{a }\square \text{ b  }\!\!\Delta\!\!\text{  c}\] . \[a+\,\square \,\,b\,\Delta \,c\] means \[a\times b-c\], \[a\,\Delta \,b\,\times c\] means \[a+b\times c\] and  \[a\,\Delta \,b\,\Delta \,c\], means \[b+a\,\Delta \,c\], then which of the following gives the result of \[b\,\Delta \,a\,\theta \,c\]

    A) 77              

    B) 160

    C) 240                             

    D) 2370

    Correct Answer: A

    Solution :

        Using the proper signs in the given expression, we get \[\text{3  }\!\!\times\!\!\text{  2  4 O 6 + 3  2}\] \[\text{3 + 2  4 O 6  3 }\times \text{ 2}\]                   


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