Mathematics
NULL
Medium
Question
A pump fills a tank in 2 hours. With a leak it takes 2⅓ hours. The leak can drain the full tank in?
A
4 1/3 hrs
B
7 hrs
C
8 hrs
D
14 hrs
✓ Official correct answer
Community credibility
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A
4 1/3 hrs
No member explanations yet for this option.
B
7 hrs
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C
8 hrs
No member explanations yet for this option.
D
14 hrs
No member explanations yet for this option.
Explanation
Leak rate = 1/2 − 3/7 = 1/14. Emptying time = 14 hours.