A and B can complete a job in 12 days, and A alone can complete the job in 18 days. How long would it take for B to complete the job alone? A) 16 days B) 24 days C) 36 days D) 48 days a. b. c. d.
Question
A and B can complete a job in 12 days, and A alone can complete the job in 18 days. How long would it take for B to complete the job alone? A) 16 days B) 24 days C) 36 days D) 48 days a. b. c. d.
Solution
Sure, let's solve this step by step:
a. First, we need to find out how much of the job A and B can complete in one day. Since they can complete the job in 12 days together, they can complete 1/12 of the job in one day.
b. Similarly, since A can complete the job alone in 18 days, A can complete 1/18 of the job in one day.
c. To find out how much of the job B can complete in one day, we subtract the part that A can do from the part that A and B can do together. So, B can do 1/12 - 1/18 = 1/36 of the job in one
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