Two pipes A and B can fill a cistern in 24 minutes and 30 minutes respectively. Both are opened together, but at the end of 6 minutes the first is turned off. How much longer pipe B will take to fill the cistern?
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Q:
Two pipes A and B can fill a cistern in 24 minutes and 30 minutes respectively. Both are opened together, but at the end of 6 minutes the first is turned off. How much longer pipe B will take to fill the cistern?
- 1$$ {22{1\over 2}}{minute}$$true
- 221 minutefalse
- 324 minutefalse
- 425 minutefalse
- 5$$ {23{1\over 2}}{minute}$$false
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