Mohammed and Audu are to share a sum of money in the ratio 1:3 .If Audu gets 24.00, How much does Mohammed get?

The total ratio is equal to 1+3=<<1+3=4>>4

The fraction representing Mohammed's share is 1/4, and the fraction representing Audu's share is 3/4.
If Audu gets 24.00, then 3/4 of the total amount is equal to 24.00
3/4 * Total amount = 24.00
Total amount = 24.00 * 4/3
Total amount = 32.00
Therefore, Mohammed will get 1/4 * 32.00 = <<1/4*32=8.00>>8.00. Answer: \boxed{8}.