Someone please answer!!

I think it should be 1:1, since no supplement information is available.

No,the options are:-a)sqrt(2)b)sqrt(1/2)c)1/sqrt(2)-1d)sqrt(2)-1

Actually this question was asked in SCRA 2009..

let A be area of vessel.

a be area of hole

at any time let H be level of water in the vessel.

Time taken for water level to get reduced from H to 0 is given by  

Time taken for water level to get reduced from H/2 to 0 is given by

therefore Time taken for water level to get reduced from H to H/2 is given by (T1)=

  ---      ---------------------1

and Time taken for water level to get reduced from H/2 to 0 is given by (T2) =    -------------2

on dividing eqn 1 by 2 we get. T1/T2 =