The average monthly income (in ) of certain agricultural workers is S and that of other workers is T. The number of agricultural workers is 11 times that of other workers. Then, the average monthly income (in ) of all the workers is :

The average monthly income (in ) of certain agricultural workers is S

1.	The average monthly income (in ) of certain agricultural workers is S and that of other workers is T. The number of agricultural workers is 11 times that of other workers. Then, the average monthly income (in ) of all the workers is :
A.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;">S + 11T</td></tr><tr><td style="text-align: center;">12</td></tr></table>
B.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;">S + T</td></tr><tr><td style="text-align: center;">12</td></tr></table>
C.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;">11S + T</td></tr><tr><td style="text-align: center;">12</td></tr></table>
D.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;">1</td></tr><tr><td style="text-align: center;">12</td><td rowspan="2">+ T</td></tr></table>
Answer» D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;">1</td></tr><tr><td style="text-align: center;">12</td><td rowspan="2">+ T</td></tr></table>

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The average monthly income (in ) of certain agricultural workers is S and that of other workers is T. The number of agricultural workers is 11 times that of other workers. Then, the average monthly income (in ) of all the workers is :

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