Banking Exams Exam  >  Banking Exams Questions  >   An inlet pipe A and an outlet pipe B are con... Start Learning for Free
An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?
  • a)
    3: 2
  • b)
    2: 1
  • c)
    4: 1
  • d)
    4: 3
  • e)
    3: 1
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
An inlet pipe A and an outlet pipe B are connected to a tank. When bo...
Time taken by pipes A and B together to fill the tank = 13 minutes 20 seconds = (40/3) minutes
(1/A) – (1/B) = 3/40 -------------(1)
If pipe A works with 125% of its original efficiency.
Time taken by pipe A alone to fill the tank = A * (100/125) = (4A/5) minutes
If pipe B works with 200% of its original efficiency.
Time taken by pipe B alone to empty the tank = B *(100/200) = (B/2) minutes
So,
(5/4A) – (2/B) = 3/40 -------------(2)
From equations (1) and (2):
(1/A) – (1/B) = (5/4A) – (2/B)
(B – A)/AB = (5B – 8A)/4AB
4B – 4A = 5B – 8A
4A = B
A: B = 1: 4
So, ratio of A’s efficiency to B’s efficiency = 4: 1
Free Test
Community Answer
An inlet pipe A and an outlet pipe B are connected to a tank. When bo...
Given:
- Inlet pipe A and outlet pipe B can fill a tank together in 13 minutes 20 seconds.
- Pipe A works with 125% of its original efficiency.
- Pipe B works with 200% of its original efficiency.
- The time taken by both pipes together after their efficiency is increased is the same as initially.

To find:
The ratio of A's efficiency to B's efficiency.

Let's assume that the original efficiency of pipe A is x units per minute, and the original efficiency of pipe B is y units per minute.

Efficiency of pipe A after the increase = 125% of x = 1.25x units per minute
Efficiency of pipe B after the increase = 200% of y = 2y units per minute

Let's calculate the time taken to fill the tank when both pipes are working together initially:
Efficiency of pipe A + Efficiency of pipe B = x + y units per minute
Time taken = 13 minutes 20 seconds = 13 + (20/60) minutes = 800/60 minutes = 40/3 minutes

Now, let's calculate the time taken to fill the tank when both pipes are working together after their efficiency is increased:
Efficiency of pipe A + Efficiency of pipe B = 1.25x + 2y units per minute
Time taken = 13 minutes 20 seconds = 13 + (20/60) minutes = 800/60 minutes = 40/3 minutes

According to the given information, the time taken is the same initially and after the increase in efficiency. Therefore, we can write the equation:

40/3 = 40/3

Simplifying the equation, we get:

1.25x + 2y = x + y

Simplifying further, we get:

0.25x = y

Therefore, the ratio of A's efficiency to B's efficiency is:

x/y = 1/0.25 = 4/1

Hence, the ratio of A's efficiency to B's efficiency is 4:1, which corresponds to option C.
Explore Courses for Banking Exams exam

Similar Banking Exams Doubts

An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer?
Question Description
An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer? for Banking Exams 2025 is part of Banking Exams preparation. The Question and answers have been prepared according to the Banking Exams exam syllabus. Information about An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Banking Exams 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer?.
Solutions for An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Banking Exams. Download more important topics, notes, lectures and mock test series for Banking Exams Exam by signing up for free.
Here you can find the meaning of An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer?, a detailed solution for An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice An inlet pipe A and an outlet pipe B are connected to a tank. When both the pipes are opened, they together can fill a tank in 13 minutes 20 seconds. If pipe A works with 125% of its original efficiency and pipe B works with 200% of its original efficiency, they both together took same time as initially. Find the ratio of A’s efficiency to B’s efficiency?a)3: 2b)2: 1c)4: 1d)4: 3e)3: 1Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Banking Exams tests.
Explore Courses for Banking Exams exam

Top Courses for Banking Exams

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev