2:3 is also wrong according to me the ans is 1:3

 

1xV = 2/m1 x R X 298 ------------------------------------------ (1)

1/2xV = 3/m2 x R X 298

V = 6/m2 x R x 298 --------------------------------------------(2)

 

from 1 and 2

 

6/m2 = 2/m1

3m1 = m2

1:3

 

tell my mistake if ne

 

sorry mankad