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Railways Sample Paper RRB (Group D) Sample Test Paper-5

  • question_answer
    A invests Rs. 64,000 in a business. After few months B joined him with Rs. 48,000. At the end of year, the total profit was divided between them in the ratio 2:1. After how many months did B join?

    A)  7                    

    B)  8

    C)  4                    

    D)  6

    Correct Answer: C

    Solution :

    [c] Suppose, B Joined after x month Then B's money was invested for \[(12-\,x)\] months \[\therefore \] According to question  \[\frac{64000\times 12}{48000\times (12-\,x)}=\frac{2}{1}\] \[\frac{16}{12-\,x}=\frac{2}{1}\Rightarrow \,\,\,16=24-\,2x\] \[2x=24-\,16=x=4\] Hence, B joined after 4 months


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