Mathematics
NULL
Medium
Question
P finishes a work in 18 days and Q in 15 days. Q works for 10 days and leaves. How many days does P need alone for the rest?
A
8
B
6
✓ Official correct answer
C
4
D
2
Community credibility
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A
8
No member explanations yet for this option.
B
6
No member explanations yet for this option.
C
4
No member explanations yet for this option.
D
2
No member explanations yet for this option.
Explanation
Q does 10/15 = 2/3. Remaining 1/3 takes P (1/3) × 18 = 6 days.