Sail E0 Webinar

Quantitative Aptitude

PIPES AND CISTERN MCQs

Pipes & Cisterns

Total Questions : 431 | Page 6 of 44 pages
Question 51. Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is:
  1.    60 gallons
  2.    100 gallons
  3.    120 gallons
  4.    180 gallons
  5.    None of these
 Discuss Question
Answer: Option C. -> 120 gallons
Question 52. A tank is filled in 5 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank?
  1.    20 hours
  2.    25 hours
  3.    35 hours
  4.    Cannot be determined
  5.    None of these
 Discuss Question
Answer: Option C. -> 35 hours
Question 53. Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?
  1.    1 hour
  2.    2 hours
  3.    6 hours
  4.    8 hours
 Discuss Question
Answer: Option C. -> 6 hours
Question 54. Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?
  1.    12 minutes
  2.    15 minutes
  3.    25 minutes
  4.    50 minutes
 Discuss Question
Answer: Option A. -> 12 minutes
Question 55. Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?
  1.    10 min. 20 sec.
  2.    11 min. 45 sec.
  3.    12 min. 30 sec.
  4.    14 min. 40 sec.
 Discuss Question
Answer: Option D. -> 14 min. 40 sec.
Question 56. One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in:
  1.    81 minutes
  2.    108 minutes
  3.    144 minutes
  4.    192 minutes
 Discuss Question
Answer: Option C. -> 144 minutes
Question 57. A large tanker can be filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?
  1.    15 minutes
  2.    20 minutes
  3.    27.5 minutes
  4.    30 minutes
 Discuss Question
Answer: Option D. -> 30 minutes
Question 58. A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
  1.    3 hrs 15 min
  2.    3 hrs 45 min
  3.    4 hrs
  4.    4 hrs 15 min
 Discuss Question
Answer: Option B. -> 3 hrs 45 min
Question 59. Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in:
  1.    6 hours
  2.    $$6\frac{2}{3}$$ hours
  3.    7 hours
  4.    $$7\frac{1}{2}$$ hours
 Discuss Question
Answer: Option C. -> 7 hours
Question 60. Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. The number of hours taken by C alone to fill the tank is:
  1.    10
  2.    12
  3.    14
  4.    16
 Discuss Question
Answer: Option C. -> 14

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0