Discussion
1) Mr. a and mr. b can do a piece of work in 8 and 12 days respectively. if both of them work together, in how many days the work will get completed ?
Explanation:
A 's 1 day work = 1/8
B's 1 day work = 1/12
When both work together, 1 day's work = (1/8) + (1/12) = (3+2) / 24 = 5 / 24
Number of days to complete the work will be 24 / 5 days
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