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P, Q and R alone can complete a piece of work in 24, 36 and 18 days respectively. P started working, after 2 days R joins with them and Q joins with them after another 2 days, then find the no of days P, Q and R worked together.
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Q:
P, Q and R alone can complete a piece of work in 24, 36 and 18 days respectively. P started working, after 2 days R joins with them and Q joins with them after another 2 days, then find the no of days P, Q and R worked together.
- 1$$ {5{2\over 9}\ days}$$false
- 2$$ {6{2\over 9}\ days}$$true
- 3$$ {4{3\over 5}\ days}$$false
- 4None of thesefalse
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