Q28. A and B together take 9 days to finish a job. A is 20% less efficient than B. How many days does A take to finish the job alone?Mathematics — Word Problems — Question 28 of 38A. 18 daysB. 20.25 daysC. 15 daysD. 24 daysPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →