Ramon spends 2/5 of his monthly income on rent ,1/5 of his income on utilities and 3/4 of the amount remaining on food and recreation. he saves 193.50 a month, what is ramon’s monthly income?

Let x = income
Then: 
Rent: 
Utilities:  
Food and Recreation:  

Now adding all the expenses: 
We see that the expenses are 90% of the income, so the savings must be 10% of the income.

x=1935.0  this is your income  
Hope this helps...