Railways Sample Paper RRB (Group D) Sample Test Paper-3

  • question_answer
    The sum of two numbers is \[15\frac{1}{3}\] and their difference is \[4\frac{2}{3}\] The product of the numbers is

    A)  50                   

    B)  \[48\frac{2}{3}\]

    C)  \[53\frac{1}{3}\]          

    D)   60

    Correct Answer: A

    Solution :

    [a] Let the numbers are x and y. According to question \[x+y=\,\frac{46}{3}\]               ? (i) \[x-\,y=\frac{14}{3}\]                ? (ii) Adding eqn. (i) & (ii) \[2x=\frac{46+14}{3}\Rightarrow \frac{60}{3}\] \[\Rightarrow x=10\] \[10+y=\frac{46}{3}\] \[\Rightarrow y=\frac{46}{3}-\,10=\frac{16}{3}\] Product of number \[=10\times \frac{16}{3}=\frac{160}{3}=53\frac{1}{3}\]


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