A boy was engaged for 30 days and was paid Rs. 5 each day he worked and was find Rs. I for each dayhe was absent. Thus at the end, he was paid Rs. 90.For how many days was he absent ?
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Let boys are absent for x days, be
Then, [tex] {-x + 1 +(30 - x) * 5}= {90} [/tex]
[tex]{-x + 150 - 5x} = {90}[/tex]
[tex] {150 - 6x} = {90}[/tex]
[tex] {150 - 90} = {6x}[/tex]
Reverse it, [tex] {6x} ={ 60}[/tex]
[tex] {x} =\frac{60}{6}[/tex]
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