Question
The average daily income of a daily wage worker, in the
month of February is Rs. 120. If his average income on 1st 12 days of the month is Rs. 80 and on last 14 days of the month is Rs. 120, then find his average income on remaining two days of the month.Solution
His total income in the month = 28 × 120 = Rs. 3360 His income of 1st 12 days = 12 × 80 = Rs. 960 His income in last 14 days = 14 × 120 = Rs. 1680 Therefore, his income in the remaining two days = 3360 – (960 + 1680) = Rs. 720 Required average = (720/2) = Rs. 360
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