Two pipes can fill a tank in 10 and 12 hours respectively
while third pipe will make the tank empty in 20 hours. If
all three pipes operate simultaneously, in how many hours
the tank will be filled ?
- 6 Answers
- 28889 Views
- Lucent, I also Faced
- E-Mail Answers
Answer Posted / sabarish
1/10 + 1/12 - 1/20
solving we get... 7.5 hrs
| Is This Answer Correct ? | 28 Yes | 9 No |
Post New Answer View All Answers
It has 20 mixture contains mil and water in the ratio 3:5,replace 4 litres of mixture with 4 litres of water what is the final ratio of milk and water.
A sales person multiplied a number and get the answer is 3, instead of that number divided by 3. what is th answer he actually has to get ?
If the area of a square has increased by 69%,by what % has its side increased?
How can you make a square from two triangles?
A team P of 20 engineers can complete a task in 32 days. Another team Q of 16 engineers can complete the same task in 30 days. Then the ratio of working capacity of 1 member of P to that of a member of Q is:
Two cars are 15 kms apart. One is turning at a speed of 50kmph and the other at 40kmph . How much time will it take for the two cars to meet?
There is a work which can be completed by A with 12 days and B by 18 days. A and B works together for 3 days and B left. After that how many days for A to complete the work?
What is the code formed by reversing the First and second letters, the third and fourth letters and son on of the string SIMULTANEOUSLY?
There are two trees in a lawn. One grows at a rate 3/5 of the other in 4 years. If the total growth of trees What is the height of the smaller tree after 2 years
Choose the odd man out from the below mentioned options?
Hi Guys. I am an Instrumentation and Control Engineer(ICE) and have filled various PSU entrance exam forms. I wanted to know if anyone of you out there had any material for the preparation of the same. Any sort of material will be greatly appreciated. Be it previous year questions (Aptitude, GK or Technical) , study material or links to websites which do have this material. PSUs that I am going to appear in are HPCL, SAIL, ECIL and finally Gate. Any suggestions and advice is greatly welcomed. My E-Mail ID is kris_sreekanth86@yahoo.co.in
he hour hand lies between 3 and 4. Tthe difference between hour and minute hand is 50 degree.What are the two possible timings?
Find the longest palendrom in a string? Example Input: abfgerccdedccfgfer Output: ccdedcc i want a solution in C/C++ language
How many different 9 digit numbers can be formed from the number 223355888 by re-arranging its digits so that the odd digits occupy even position?
The area of the quadrilateral is 36 What is a*b
