Question

The ratio of monthly to the saving in a family is 5:4 if the savings be $9000.find the income and the expenses.

Answer 1

ratio=5:4
=>5:4::x:9000
=>5×9000=4×x
=>45000=4x
=>x=45000÷4
therefore x=11250
expense=11250-9000=2250
monthly=$11250
And
expend =$2250

Answer 2

Answer:

Monthly income = 20,250 and savings 9000

Step-by-step explanation:  

The given ratio might be about ratio of monthly expenses and savings

Given ratio of monthly expenses and savings = 5 : 4

                            savings = $9000

Let 5x and 4x be the monthly expenses and savings  

( expenses and savings are in 5 : 4 ratio )

given that savings = $ 9000

                           4x = 9000

                             x = 2,250

monthly expenses 5x = 5 (2,250) = $11250  

total income  =  expenses + savings

                      =  11250 + 9000

                      = $ 20,250