A is half good a work man as B and together they finish a job in 14 days. In how many days working alone B finish the job? Select the correct option
A) 23	B) 22	C) 21	D) 36	E) 48
21   21   W21 = 1:2   2x + x = 1/14 =&gt; x = 1/42   2x = 1/21 =&gt; 21 days
<result>C</result>
A is half good a work man as B and together they finish a job in 14 days. In how many days working alone B finish the job?