How much water is to be added to dilute `10 mL` of `10 N HCl` to make it decinormal?

How much water is needed to dilute 10 ml of 10 N hydrochloric acid to make it exactly decinormal (0.1 N) ?

How much water should be added to 500 mL of N/2 NaOH solution to obtain a decinormal solution?

The amount of water to be added to 100 c.c. of 1 normal HCl solution to make it decinormal is -

How much water should be added to 3M HCl to get 1L 0.25M HCl ?

Calculate the volume of water to be added to 400 ml of seminormal HCl solution to make it decinormal

How much water should be added to 100 ml of 1MH_(2)SO_(4) solution to make it exactly 0.1 N ?