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Railways PYQCBT 2 2017

RRB NTPC · Question 47

N has Rs. p more than K. The total amount available with N and K together is Rs. q. How much does K have?

  1. \(\frac{q}{2} + p\)

  2. 2(p + q)

  3. \(\frac{{\left( {p + q} \right)}}{2}\)

  4. \(\frac{{\left( {q - p} \right)}}{2}\)

Show answer & explanation

Answer: (D) \(\frac{{\left( {q - p} \right)}}{2}\)

Explanation

Let K have x. Then N has x + p, and x + (x + p) = q, so x = (q − p)/2.