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      Question

      The average daily income of a daily wage worker, in the

      month of January is Rs. 100. If his average income on 1st 13 days of the month is Rs. 50 and on last 16 days of the month is Rs. 125, then find his average income on remaining two days of the month.
      A Rs. 810 Correct Answer Incorrect Answer
      B Rs. 800 Correct Answer Incorrect Answer
      C Rs. 225 Correct Answer Incorrect Answer
      D Rs. 610 Correct Answer Incorrect Answer
      E Rs. 700 Correct Answer Incorrect Answer

      Solution

      His total income in the month = 31 × 100 = Rs. 3100
      His income of 1st 13 days = 13 × 50 = Rs. 650
      His income in last 16 days = 16 × 125 = Rs. 2000
      Therefore, his income in the remaining two days = 3100 – (650 + 2000) = Rs. 450
      Required average = (450/2) = Rs. 225

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