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Railways Sample Paper RRB (Group D) Sample Test Paper-9

  • question_answer
    In an exam the sum of the scores of A and B is 120, that of B and C is 130 and that of C and A is 140. Then the score of C is:

    A)  65                   

    B)  60

    C)  70                   

    D)  75

    Correct Answer: D

    Solution :

    [d] A+B=120                ?(i) B+C=130                     ... (ii) C+A=140                     ... (iii) Adding all three equations 2A+2B+2C=390 A+B+C=195 But, A+B=120 So, \[C=195-\,120=75\]


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