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      Question

      Four friends ('W', 'X', 'Y', and 'Z') went to dinner and

      received a bill of Rs. 1,800. They agreed that 'W' would pay half of what the other three paid together. 'X' contributed 10% less than what 'W' paid. 'Y' and 'Z' each paid Rs. 50 more than 'W'. Find the amount paid by 'X'.
      A Rs.625 Correct Answer Incorrect Answer
      B Rs.425 Correct Answer Incorrect Answer
      C Rs.450 Correct Answer Incorrect Answer
      D Rs.540 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the amount paid by 'W' be Rs. 'y'.

      So, the amount paid by 'X', 'Y', and 'Z' together = 2y.

      Thus, we have:

      y + 2y = 1800

      3y = 1800

      y = 600

      Now, amount paid by 'X' = 600 - (0.10 Ă— 600) = 600 - 60 = Rs. 540.

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