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597

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
    $$ {22{1\over 2}}{minute}$$
  • 2
    21 minute
  • 3
    24 minute
  • 4
    25 minute
  • 5
    $$ {23{1\over 2}}{minute}$$
  • Show Answer
  • Workspace

Answer : 1. "$$ {22{1\over 2}}{minute}$$"

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