Question 1112673
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A worker is employed to work for 30 days at the rate of Rs 120 per day. If he is absent on a particular day he loses Rs 30. The worker earns total of Rs 2700 for that period. For how many days was the worker absent?

Yes, yes, yes.....HIGHLY ILLOGICAL! How can someone, when ABSENT on certain days, be making money on those days. Unless, of course,
it's an employee who may get paid while out. But, that's another story. This is definitely NOT the case here, and doesn't apply
here! Plus, it's clearly stated that he's employed to WORK for 30 days, hence CONTRACT! 

Let number of days absent be A
Then number of days present = 30 - A
With him losing Rs 30 per day, when absent, he then loses a total of - 30A 
With him receiving Rs 120 per day, when present, he earns 120(30 - A), or 3,600 - 120A
Since total earnings were Rs 2,700, we get: - 30A + 3,600 - 120A = 2,700
                                                    - 30A - 120A = 2,700 - 3,600 
                                                          - 150A = - 900
                               <font color = red><font size = 4><b>Number of days absent</font></font></b>, or {{{highlight_green(matrix(1,5, A, "=", (- 900)/(- 150), "=", highlight(6)))}}}</pre>