Question

explaination must!!!!
An empty water tank of length , breadth and height 3.3m, 2m and 1m respectively is to be filled with water by a tap of radius 3 cm and the rate of flow of water is 7 m/sec. From this tank water is continuously utilized at the same rate of flow of water by a water tap of cross sectional radius of 2cm. Calculate the time after which tank will be completely filled, of both the taps are opened simultaneously?

Answer 1

??????????????????

Answer 2

*

Answer 3

wht

Answer 4

area of cross section of water coming /sec from tap of radius 0.03 = 0.03^2 *pi =0.0009pi
rate of flow of water vertically is 7 m/sec
so volume of water /sec = 7 * 9* pi * 10^-4 = 63 pi* 10^-4

volume of tank = 3.3 *2 *1 = 6.6

area of cross section of water flowing out of radius 0.02 = 0.02 ^2 * pi = 0.0004 pi
rate of flow is same
so volume flowing out/sec = 28 pi* 10^-4

thus, net volume filling in /sec = (63 -28) pi*10^-4 = 35 pi * 10^-4

total time = 6.6 *10^4/ (35 pi) = 600.2 approx secs

am not too sure to tell the truth..please confirm the ans..

Answer 5

nai hint is the ans is a natural no

Answer 6

it comes out to be 10 mins approximately ..

Answer 7

hmmmmmmmmmm

Answer 8

absolutely right

Answer 9

may i ask u a Q'n

Answer 10

you may! :P

Answer 11

do u have an fb acount

Answer 12

account

Answer 13

maybe we should chat further in pvt messages ? ;)

Answer 14

ur id

Answer 15

username

Answer 16

mine is amruta bharsakle

Answer 17

hmm..alright,,you dont seem to respond there..
everyone is on fb these days!

you may search me via
shubham.shubhu@gmail.com

Answer 18

g talk

Answer 19

do u have skype account

Answer 20

bt do u have an fb act

Answer 21

hmm..yep..skype id is shubham.srg
facebook name is shubham raj, but if you search for shubham.shubhu@gmail.com, you can find me directly..also the same id for gtalk..

Answer 22

yup i got
come online on skype

Answer 23

going to have dinner,,later..
see you in 10-15 mins..
and am deleting all my messages here..add me on fb only if you wish..am deleting the message..

Answer 24

not there

Answer 25

on fb

Answer 26

shubham.shubhu@gmail.com
you sure you typed it right ?

Answer 27

fb gtalk ka kaam ho gaya

Answer 28

i sent you req on fb..

Answer 29

hmmm i accepted

Answer 30

hmmm..