Railways R.R.C. (Jabalpur) Solved Paper Held on 1st Shift 30-11-2014

  • question_answer The difference between 63% of a number and 45% of he same number is 342. What is 78% of that number?

    A) 1670

    B)               1482

    C) 1342                            

    D) None of these

    Correct Answer: B

    Solution :

    Suppose number be x. Then,   \[\frac{63}{100}x-\frac{45}{100}x=342\]                            \[\frac{18x}{100}=342\]                                 \[x=\frac{342\times 100}{18}=1900\] Hence,  \[78%\,\,of\,\,x=\frac{78}{100}\times 1900\] \[=1482\]

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