Question
The average daily income of a daily wage worker, in the
month of April is Rs. 150. If his average income on 1st 12 days of the month is Rs. 80 and on last 16 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 = 30 × 150 = Rs. 4500
His income of 1st 12 days = 12 × 80 = Rs. 960
His income in last 16 days = 16 × 120 = Rs. 1920
Therefore, his income in the remaining two days = 4500 – (960 + 1920) = Rs. 1620
Required average = (1620/2) = Rs. 810
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