When working individually A and B takes 6days and 8days to paint the fence respectively. They started working together. After 2 days C also joined them. If the work was completed after 1 day together(total 3 days). In how many days can C do the same all alone.
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Answer:
8 days
Explanation:
A = 1/6 of work per day
B = 1/8 of work per day
we know that A and B worked together 3 days and on the third day C joined them, then
3A+3B+C = 1
3/6+3/8+C = 1
21/24+C = 1
C = 3/24 or 1/8
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