A can complete a work in 15 days and B can complete the work in 20 days. If B works for 8 days and left the job, then in how many days the A can complete the remaining job?
A. 6 days
B. 7 days
C. 8 days
D. 9 days
E. 10 days
সঠিক উত্তরঃ
D.
9 days
Explanation:
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