12 men can complete a piece of work in 4 days, while 15 women can complete the same work in 4 days. 6 men start working on the job and after working for 2 days, all of them stopped working. How many women should be put on the job to complete the remaining work, if it so to be completed in 3 days? Select the correct option:  A) 22  B) 15  C) 66  D) 77  E) 88
1 man's 1 day work = 1/48; 1 woman's 1 day work = 1/60.   6 men's 2 day's work = 6/48 * 2 = 1/4.   Remaining work = (1 - 1/4) = 3/4   Now, 1/60 work is done in 1 day by 1 woman.   So, 3/4 work will be done in 3 days by (60 * 3/4 * 1/3)= 
<gadget id="calculator">(60 * 3/4 * 1/3)</gadget>
<output>15</output>
15 women.   Answer: 15
<result>B</result>
12 men can complete a piece of work in 4 days, while 15 women can complete the same work in 4 days. 6 men start working on the job and after working for 2 days, all of them stopped working. How many women should be put on the job to complete the remaining work, if it so to be completed in 3 days?