6 pumps take 1 hr 20 minutes to fill a tank. If 5 pumps are opened then they fill the tank in ………………. mins.
A) 106
B) 86
C) 96
D) 92
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A paper is folded several times. When it was opened it was observed that it contained 22 triangles and 22 quadrilaterals
Correct option is (A) Both triangles and quadrilaterals \(\because\) 22 is greater than 12. \(\therefore\) Triangles and quadrilaterals both occur most frequently. \(\therefore\) Both triangles and quadrilaterals are mode.
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Take two balloons inflate them. Rub both with your hair. Bring them to closer to each other. Then they
Correct option is A) repels
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Take two balloons inflate them. Rub both with your hair. Bring them to closer to each other. Then they
2 Answers
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One litre of water can fill in cylinder A and two litres of water can fill in cylinder B. Then two litres of gas can fill in
C) both ‘A’ and ‘B’
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If A pump can take 5 hrs to fill a 50 l of tank then how much time to take to fill a 75 liters of tank for the same pump?
Correct option is (D) \(7\,\frac{1}{2}\) hrs \(\because\) Time taken to fill a \(50\,l\) of tank = 5 hours \(\therefore\) Time taken to fill a \(75\,l\) of tank \(=\frac5{50}\times75\;hours\) \(=\frac{75}{10}\;hours\) = 7.5 hours = 7 hours + \(\frac12\) hours = \(7\frac12\) hours
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If A pump can take 5 hrs to fill a 50 l of tank then how much time to take to fill a 75 liters of tank for the same pump?
2 Answers
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6 pumps take 1 hr 20 minutes to fill a tank. If 5 pumps are opened then they fill the tank in ………………. mins.
Correct option is (C) 96 Time = 1 hr 20 minutes = (60+20) minutes = 80 minutes Total work done by 6 pumps in 1 hr 20 minutes \(=6\times80=480.\) Let 5 pumps take time to fill the...
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A tank has two inlet pipes, A and B, which can fill the tank in 12 hours and 18 hours respectively, and an outlet C which can empty the tank in 9 hour
Correct Answer - 12 hours
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A tap can fill a tank in 48 minutes whereas another tap can empty it in 2 hours. If both the taps are opened at 11:40 A.M, then the tank will be fille
Correct Answer - C Consider, the filling of tank as a positive work and emptying the tank as negative work.
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Two students A and B can finish solving some set of questions in 10 minutes and 15 minutes respectively. In what time will the task be finished if B h
Correct Answer - B Find the work done by A in 3 minutes.
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