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A tap can fill a tank in 4 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
- a)3 hr
- b)1 hr 30 min
- c)2 hr 30 min
- d)2 hr
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A tap can fill a tank in 4 hours. After half the tank is filled, three...
Time taken by one tap to fill half of the tank = 3 hrs.
Part filled by the four taps in 1 hour =
Remaining part =
hours i.e, 45 mins.
So, total time taken = 3 hrs. 45 mins.
Part filled by the four taps in 1 hour =
Remaining part =
hours i.e, 45 mins.So, total time taken = 3 hrs. 45 mins.
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Community Answer
A tap can fill a tank in 4 hours. After half the tank is filled, three...
Given:
- One tap can fill a tank in 4 hours.
- After half the tank is filled, three more similar taps are opened.
To find:
- Total time taken to fill the tank completely.
Solution:
Let's assume that the tank has a capacity of 1 unit.
- One tap can fill the whole tank in 4 hours.
- So, in 1 hour, the tap can fill 1/4th of the tank.
When half of the tank is filled:
- The amount of water filled = 1/2 unit.
- The amount of water remaining = 1/2 unit.
Now, three more taps are opened. So, the total number of taps working = 4.
- In 1 hour, one tap can fill 1/4th of the tank.
- So, in 1 hour, four taps can fill the whole tank.
- Therefore, the time taken to fill the remaining half of the tank = (1/2)/(4/1) = 1/8 hour = 7.5 minutes.
Total time taken to fill the whole tank =
- Time taken to fill the first half + time taken to fill the remaining half = 2 hours + 7.5 minutes = 2 hours 30 minutes.
Therefore, the correct option is (c) 2 hr 30 min.
- One tap can fill a tank in 4 hours.
- After half the tank is filled, three more similar taps are opened.
To find:
- Total time taken to fill the tank completely.
Solution:
Let's assume that the tank has a capacity of 1 unit.
- One tap can fill the whole tank in 4 hours.
- So, in 1 hour, the tap can fill 1/4th of the tank.
When half of the tank is filled:
- The amount of water filled = 1/2 unit.
- The amount of water remaining = 1/2 unit.
Now, three more taps are opened. So, the total number of taps working = 4.
- In 1 hour, one tap can fill 1/4th of the tank.
- So, in 1 hour, four taps can fill the whole tank.
- Therefore, the time taken to fill the remaining half of the tank = (1/2)/(4/1) = 1/8 hour = 7.5 minutes.
Total time taken to fill the whole tank =
- Time taken to fill the first half + time taken to fill the remaining half = 2 hours + 7.5 minutes = 2 hours 30 minutes.
Therefore, the correct option is (c) 2 hr 30 min.
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A tap can fill a tank in 4 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely? a)3 hrb)1 hr 30 minc)2 hr 30 mind)2 hrCorrect answer is option 'C'. Can you explain this answer? for LR 2026 is part of LR preparation. The Question and answers have been prepared according to the LR exam syllabus. Information about A tap can fill a tank in 4 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely? a)3 hrb)1 hr 30 minc)2 hr 30 mind)2 hrCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for LR 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A tap can fill a tank in 4 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely? a)3 hrb)1 hr 30 minc)2 hr 30 mind)2 hrCorrect answer is option 'C'. Can you explain this answer?.
A tap can fill a tank in 4 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely? a)3 hrb)1 hr 30 minc)2 hr 30 mind)2 hrCorrect answer is option 'C'. Can you explain this answer? for LR 2026 is part of LR preparation. The Question and answers have been prepared according to the LR exam syllabus. Information about A tap can fill a tank in 4 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely? a)3 hrb)1 hr 30 minc)2 hr 30 mind)2 hrCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for LR 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A tap can fill a tank in 4 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely? a)3 hrb)1 hr 30 minc)2 hr 30 mind)2 hrCorrect answer is option 'C'. Can you explain this answer?.
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