A complete work in 15 days B complete sane work in 20 days A started working alone after 1 day B joined him How many days will they now take together to complete the remaining work
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Answer:
8 days
Step-by-step explanation:
Since 15 days work of one person is equal to 20 days work of another person, the amount of work would be the LCM of these numbers.
LCM of 15 and 20 is 60.
Let's say the work is to make 60 tables (A and B are carpenters)
Thus, A makes 4 tables a day and B makes 3 tables a day if they work alone.
If they work together, they make 4+3 =7 tables a day.
As A already worked 1 day and made 4 tables, they both have to make 56 more tables, for which they would take : 56/7 = 8 days.
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