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Question 55

Two pipes can fill a tank in 20 minutes and 30 minutes respectively. An outlet pipe can empty the full tank in 15 minutes. If all three are opened together…

Two pipes can fill a tank in 20 minutes and 30 minutes respectively. An outlet pipe can empty the full tank in 15 minutes. If all three are opened together when the tank is empty, the tank will be filled in:
  1. A75 min
  2. B60 min
  3. C40 min
  4. D45 min
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Correct answer: (B) 60 min

From DSSSB TGT Computer Science Full Mock Test 3

This is question 55 of DSSSB TGT Computer Science Full Mock Test 3. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.