P and Q can complete a work in 20 days and 12 days respectively. P alone started the work and Q joined him after 4 days till the completion of the work. How long did the work last? | MCQ Hive

Mathematics Mcqs

Q P and Q can complete a work in 20 days and 12 days respectively. P alone started the work and Q joined him after 4 days till the completion of the work. How long did the work last?

A A. 5 days
B B. 10 days
C C. 15 days
D D. 12 days

Previous P can finish a work in 18 days. Q can finish the same w…

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