ExamCompetition Forum Question Papers Ask A Question Mock Test Learn & Earn Sign Up Login Menu



0 vote

Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:

Asked on by | Votes 0 | Views: 71 | Tags: time and work     | numerical ability     | Add Bounty

Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:


1). 60/11 hours
2). 60/17 hours
3). 30/23 hours
4). 24 hours


Share on Facebook      Share on Whatsapp       Share on Twitter




1 answers

3 vote
Answered by on | Votes 3 |

Net part filled in 1 hour = (1/5 + 1/6 - 1/12) = 17/60

∴ Time taken to fill the tank = 1/(17/60) = 60/17 hours

Join Telegram Group




Answer This Question

Name:
Email:
Answer :
Sum of (5+3)
Submit:

Other Questions

1. A and B are two alloys of copper and tin prepared by mixing metals in the ratio of 4 : 3 and 5 : 7 respectively. These alloys are melted in the ratio 1 : 2 to form a third alloy C. The ratio of tin and copper in the alloy C is

2.  What will come in place of question mark (?) in the following number series? 7, 4, 5, 9, ?, 52.5, 160.5

3. Directions: Study the paragraph and answer the questions that follow. A survey was conducted in a class of 85 students, comprising of 48 boys and 37 girls. When asked about their age and weight, it was noted that 26 boys have an average age of 16.5 years, while the remaining 22 boys have an ave

4. Direction: Mohit Bhola must travel from Delhi to Mumbai covering 2600 km. He covers 1/52 fraction of distance by Auto rickshaw and 3.84% of distance by car. The remaining distance he covers via Train. The cost of travel by auto rickshaw and car is decided by the number of kilometres he covers. The c

5. Men, women, and children are employed to do work in the proportion of 1 ∶ 2 ∶ 3 and their daily wages are in the proportion of 6 ∶ 3 ∶ 2 . When 50 men are employed, the total wages of all the persons amount to Rs 450. Find the weekly wages paid to a man.

6. Zinc and copper are in the ratio of 5 : 3 in 400 gram of an alloy. How much gram of copper should be added to make the ratio of zinc to copper as 3 : 5?

7. Find the wrong term in the series. 2, 54, 300, 1220, 3674, 7350

8. Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. Quantity A: An amount of sum fetched a total simple interest of Rs. 800 at the rate of 8% per annum in 5 years. What is the sum? Quantity B: 2000

9. The present ages of P and Q are in the ratio 3 : 4 respectively. The average of present ages of P, Q, R and S is 28 years. The ages of R and Q, 4 years hence would be in the ratio of 5 : 4 respectively. S’s present age is ________ and he is 8 years elder to R.

10. What will come in place of question mark (?) in the following question? (13)2 × (12)3 ÷ (144)1/2 = 64 × ?