Subject
Bank Exam
Topic
Bangladesh Bank AD 2014
Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?
Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?
ক)
12 minখ)
15 minগ)
25minঘ)
50 minExplanation
shortcut=xy/x+y =(20×30)/50 =12Related questions
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