Pipe A can fill a tank in 5 hours , pipe B in 10 hours and pipe Con 30 hours. if all pipes are open , in how many hours tank be filled?
Answers
Answered by
2
Answer:
subtract all no. answer is 15 hr
Answered by
1
Answer:
3 hours
Step-by-step explanation:
a work 1/5
b work 1/ 10
c work 1 / 30
on adding 1/5+1/10+ 1/30
total 1/3
in 3 hours all tank will be filled
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