NIELIT 2022 Feb Scientist D - Section C: 12

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$12$ children take $16$ days to complete a work which can be completed by $8$ adults in $12$ days. $16$ adults started working and after $3$ days $10$ adults left and $4$ children joined them. How many days will it take them to complete the remaining work?

1. $6$
2. $8$
3. $4$
4. $3$

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