Question

18 skilled workers can complete a task in 12 days while 24 semi-skilled workers need 15 days to complete the same task. 12 skilled workers started the task but 3 of them left after a few days. How many semi-skilled workers should replace the 3 skilled ones who left so that the task can be completed in stipulated time?

Q: Answer-18 skilled workers can complete a task in 12 days while 24 semi-skilled workers need 15 days to comp...

Let the skilled workers x and semi-skilled workersy 18x 12 24y 15 3x 5y 3 skilled workers 5 semi-skilled workers. Therefore, we can say that in place of 3 skilled workers, 5 semi workers can come.

A 5

B 4

C 7

D 6

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