7th Class Mathematics Related to Competitive Exam Question Bank Mathematical Operations

  • question_answer
    If\[\text{+}\]means \[\times ,\,\,\times \] means \[-,\,\,\div \] means \[+\] and \[-\] means \[\div ,\] then which of the following gives the result of\[175-25+5+20\times 3+10?\]

    A) 77                               

    B) 160

    C) 240                             

    D) 2370

    Correct Answer: A

    Solution :

        Using the proper signs in the given expression, we get \[175\div 25+5\times 20-3\times 10=7+5\times 20-3\times 10\] \[=7+100-30=107-30=77.\]


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