Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_00.1
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Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_20.1

Q1. X pipe can fill a tank in 15 hours and pipe Y in 45 hours. If both the pipes are opened in an empty tank, how much time will they take to fill it?
X पाइप 15 घंटे में एक टैंक भर सकता है और Y पाइप 45 घंटे में. यदि दोनों पाइप एक खाली टैंक में खोले जाते हैं, तो उन्हें भरने में कितना समय लगेगा?
(a) 11 hours/ 11 घंटे
(b) 11 hours 15 min/ 11 घंटे 15 मिनट
(c) 12 hours/ 12 घंटे
(d) 12 hours 15 min/ 12 घंटे 15 मिनट

Q2. A pump can fill a tank in 4 hours. Because of leak in the tank it took 50 hours to fill the tank. If the tank is full, how much time will the leak take to empty it?
एक पंप 4 घंटे में एक टैंक भर सकता है. टैंक में रिसाव की वजह से टैंक को भरने में 50 घंटे लग गए. यदि टैंक भरा हुआ है, तो रिसाव को खाली करने में कितना समय लगेगा?
(a) 20 hours/ 20 घंटे
(b) 25 hours/ 25 घंटे
(c) 16 hours/ 16 घंटे
(d) 12 hours/ 12 घंटे

Q3. The pipes x, y and z are attached to a tank. x and y can fill it in 30 and 40 minutes respectively while z can empty it in 20 minutes. If x, y and z are kept open together, how soon will the tank be filled?
पाइप x, y और z एक टैंक से जुड़े हुए हैं. x और y इसे क्रमशः 30 और 40 मिनट में भर सकते हैं जबकि z इसे 20 मिनट में खाली कर सकता है. यदि x, y और z को एक साथ खुला रखा जाता है, तो टैंक कितनी जल्दी भर जाएगा?
(a) 120 min/ 120 मिनट
(b) 90 min/ 90 मिनट
(c) 60 min/ 60 मिनट
(d) 180 min/ 180 मिनट

Q4. Two pipes x and y can fill a tank in 24 and 30 minutes respectively A third pipe z can empty the full tank in 15 minutes. All the pipes are opened in the starting then pipe z is closed after 4 minutes. In what time the tank will be full?
दो पाइप x और y क्रमशः 24 और 30 मिनट में एक टैंक भर सकते हैं. एक तीसरा पाइप z 15 मिनट में पूरा टैंक खाली कर सकता है. सभी पाइप शुरू में खोले जाते हैं फिर 4 मिनट के बाद पाइप z को बंद कर दिया जाता है. कितने समय में टैंक पूरा भर जाएगा?
Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_30.1

Q5. 24 buckets of water fill a tank when the capacity of each bucket is 27 litres. How many buckets will be needed to fill the same tank, if the capacity of each bucket is 18 litres?
24 बाल्टी पानी एक टैंक भरता है यदि प्रत्येक बाल्टी की क्षमता 27 लीटर होती है. उसी टैंक को भरने के लिए कितने बाल्टी की जरूरत होगी, अगर प्रत्येक बाल्टी की क्षमता 18 लीटर हो?
(a) 36
(b) 27
(c) 24
(d) 32

Q6. Three pipes A, B and C can fill a tank in 18, 20 and 30 hours respectively. If B is open all the time and A and C are open for 2 hours each alternately, the capacity/part of tank will be fill in 10 hours is
तीन पाइप A, B और C क्रमशः 18, 20 और 30 घंटे में एक टैंक भर सकते हैं. यदि B हर समय खुला है और A और C प्रत्येक को वैकल्पिक रूप से 2 घंटे के लिए खोला जाता है, तो 10 घंटे में टैंक का कितना हिस्सा भर जाएगा?
Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_40.1

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_50.1
(a) 5 hours/ 5 घंटे
(b) 6 hours/ 6 घंटे
(c) 4 hours/ 4 घंटे
(d) None of these/ इनमें से कोई नहीं

Q8. 2 pipes can fill a cistern in 16 hours and 18 hours respectively. If both the pipe opened simultaneously, how much time will be taken to fill the cistern?
2 पाइप क्रमशः 16 घंटे और 18 घंटे में एक कुंड भर सकते हैं. यदि दोनों पाइप एक साथ खोले जाते हैं, तो कुंड भरने में कितना समय लगेगा?
Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_60.1

Q9. A pipe can fill a tank in 8 hours. After half the tank is filled, 1 more similar tap is opened. What is the total time taken to fill the tank completely?
एक पाइप 8 घंटे में एक टैंक भर सकता है. आधा टैंक भर जाने के बाद, वैसा ही एक और नल खोला जाता है. टैंक को पूरी तरह से भरने में कुल कितना समय लगेगा?
(a) 6 hours/ 6 घंटे
(b) 4 hours/ 4 घंटे
(c) 8 hours/ 8 घंटे
(d) None of these/ इनमें से कोई नहीं

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_70.1
(a) 2 min/ 2 मिनट
(b) 3 min/ 3 मिनट
(c) 2 min 30 sec/ 2 मिनट 30 सेकंड
(d) 3 min 30 sec/ 3 मिनट 30 सेकंड

Solutions

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_80.1

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_90.1

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_100.1

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_110.1

S5. Ans.(a)
Sol. 24×27 = B×18
B= 36

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_120.1

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_130.1

Mathematics Quiz For DSSSB Exam : 13th Feb 2020 For Pipes And Cistern_140.1

S9. Ans.(a)
Sol. A pipe can fill a tank in= 8 hours
Half tank fill by it= 4 hours
Half tank fill by 2 similar pipes = 2 hours
Total time = 4+2 = 6 hours

S10. Ans.(c)
Sol. 4 unit of a bucket filled in 2 min
1 unit filled = 30 second
So, 5 unit (left) fill in = 5×30 sec = 150 sec
= 2 min 30 sec

KVS 2020 | Maths | Important Questions

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