Mathematics
Medium
Question
P can do a work in the same time in which Q and R together can do it. If P and Q work together, the work can be completed in 10 days. R alone needs 50 days to complete the same work. then Q alone can do it in__________?
A
30 days
B
25 days
✓ Official correct answer
C
20 days
D
15 days
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
30 days
No member explanations yet for this option.
B
25 days
No member explanations yet for this option.
C
20 days
No member explanations yet for this option.
D
15 days
No member explanations yet for this option.