Problem 15. (1 point)

The monthly expenses of the Mikhailov family are as follows: utility payments - 5250 rubles, food purchases - 15000 rubles, household chemicals and personal hygiene items - 3000 rubles, clothing and shoe purchases - 15000 rubles, car loan payments - 10000 rubles, transportation costs - 2000 rubles, savings for a summer trip to the sea - 5000 rubles, purchase of medicines and paid medical services - 1500 rubles, phone and Internet payments - 2000 rubles, other payments - 3000 rubles.

What income should the family have per month to save an additional 5% of this amount while keeping other expenses constant? What would be the size of the savings in this case after 10 months? (Provide answers separated by a comma, without units of measurement.)
Answer: 65000, 82500.

## Comment:

Solution:

Current expenses $=(5250+15000+3000+15000+000+2000+5000+1500+2000+$ $3000)=61750$ rubles.

Required income $=61750 / 0.95=65000$ rubles.

Savings after 10 months, taking into account their increase $=5000 \times 10+3250 \times 10=82500$ rubles.