What is the ratio between the number of water of crystallization and number of heterocyclic six membered rings in borax is

The number of water of crystallization in green vitriol is…..

What is the ratio between the number of male employess and female employess in country in II ?

Borax and kernite are complex borates to sodium. What is the difference in the number of water molecules of crystallization according to their sturctural formulae

What is the ratio between the two numbers ? (i) The sum of two numbers is twice their difference. (ii) The smaller numbers is 6.