Interested to Buy Any Domain ? << Click Here >> for more details...
There is a leak in the bottom of a cistern. When the cistern
is thoroughly repaired, it would be filled in 3 ? hours. It
now takes half an hour longer. If the cistern is full, how
long will the leak take to empty the cistern?
(a) 24 hours
(b) 28 hours
(c) 21 hours
(d) 27 hours
(e) None of these
- 7 Answers
- 28612 Views
- Bank Exams, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / mohit
suppose the capacity of cistern is 30unit. when it id repaired
then takes 3 hrs.thus water coming in i hrs=10unit.
now leak tank takes 3 hrs and 1/2 hrs extra. that is, in
general think that the water filling in 1/2 hrs is equal to
the leakage of hole in 3.5 hrs.
leakage in 3.5 hrs is =10/2=5 unit
so 5 unit is leakad in =3.5 hrs
so 30unit(full capacity) is leaked in =3.5*30/5
=21 hrs
so it will take 21 hrs to empty the full cistern.
| Is This Answer Correct ? | 25 Yes | 16 No |
Answer / godwin justin
Let's assume the tank has 12 litres capacity. The pipe can fill in 3 hours therefore efficiency= 12/3=4. Now the leak caused the tank to be filled in 3 1/2 hrs.
Total capacity/efficiency of pipe-efficiency of leak=time taken
ie,12/4-x=7/2
X=(28-24)/7= 4/7 which is the efficiency of d leak.
So time take by the leak to empty the tank is:
12รท 4/7 12*7/4= 7*3 = 21 hours
| Is This Answer Correct ? | 5 Yes | 4 No |
Answer / sagarkumar doltade
LCM of repaired tank and leak tank time=3*3.5=10.5 difference between efficiency is 1/2 then 10.5/1/2=21
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / vidhya
usual time 4(half an hour longer) -->x
ue to leak 3.5-->y
formula =x*y/x-y=>4*3.5/0.5=28 hours
| Is This Answer Correct ? | 2 Yes | 3 No |
Answer / pradeep
the amount of work done by the leak in one hour is
(2/7)-(1/4)=1/28....
Therefore the amount required to empty the whole tank is 28
hours
| Is This Answer Correct ? | 6 Yes | 9 No |
rom 7am to 11am it rained 2.25 inches.at 11am the rain increased to fall at rate oh 1.25inches every 2 hours.how many inches of rain landed on the ground by 5pm
This question is based on ages easy
Each side of a rectangle is increased by 100% . How much the percentage of area will be increased
11 Answers Accenture, CMC, Zycus Infotech,
cpahlet : shoulder :: ring : ?
two workers can type two pages in two minuets then how many persons can type 18 pages in 6 minuets
what is your weakness?
12 Answers Chetana Institute Of Management, TCS,
Will u plz provide me the syllabus for the IOB clerical aptitude exam2009.And also plz send some sample question papers for the same.
2 Answers Indian Overseas Bank,
The price of a candy bar is $1.00. The price of a ten pack of the same candy bar is $7.40. The ten pack of candy bars is what percentage cheaper then purchasing ten candy bars individually?
Distance d=rt where r & t are positive and r is constant,as t increases then d_________
meaning of INERT ?
It's 2PM on a sunny Sunday afternoon in the Bay Area. You're minutes from the Pacific Ocean, redwood forest hiking trails and world class cultural attractions. What do you do?
3 Answers Google, IIT, Jaypee,
A person buy the 6, 1 Rs stamps and 7, 50 paisa stamps he has given 12 Rs how much he will get back.
English 
