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Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-19

  • question_answer
    If \['20-10'\] means 200, \['8-4'\]means 12, \['6\times 2'\]means 4 and \['12+3'\] means 4, then \[100-10\times 1000-1000+100\times 10=?\]

    A)  1090                          

    B)  0                    

    C)  1900                          

    D)  20

    Correct Answer: B

    Solution :

    Since, \[20\times 10=200,\]therefore, - means x \[8+4=12,\]therefore, - means +. \[6-2=4,\]therefore, x means -. and \[12-3=4,\]therefore, + means -. Now, given expression \[=100\times 10-1000+1000\div 100-10\] \[=1000-1000+10-10=0\]


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