Question

A person is paid 150 for each day he works and is fined 30 for each day he remains
absent. If in 40 days, he earned 3,300; find for how many days did he work?
Solution:​

Answer 1

Answer:

Let he worked for x days . Now he got fined for

40 - x days . So his gain

$150x - (40 - x)30 = 3300 \\ 5x - (40 - x) = 110 \\ 6x = 110 + 40 = 150 \\ x = 25 \: \: days$