Subject
Bank Exam
Topic
Probashi Kallyan Bank Exam. 2014
Two pipes A & B can fill a tank in 15 minutes & 20 minutes respectively. Both the pipes are opened together but after 4 minutes , pipe A is turned off. What is the total time required to fill the tank
Two pipes A & B can fill a tank in 15 minutes & 20 minutes respectively. Both the pipes are opened together but after 4 minutes , pipe A is turned off. What is the total time required to fill the tank
ক)
10 min 20 secখ)
11 min 45 secগ)
12 min 30 secঘ)
14 min 40 secExplanation
Part filled in 4 mins = 4(1/15 + 1/20) = 7/15 Remaining part = 1 - 7/15 = 8/15 Part Filled by B in 1 min 1/20 So, 1/20 : 8/15 = 1: x x = 10 min 40 sec total time 14 min 40 secRelated questions
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