11. Revenues for the period from 11.2019 to 03.2020 will be:

$$
5^{*}(45000+35000+7000+10000+13000)=550000 \text { rubles }
$$

Expenses for the period from 11.2019 to 03.2020 will be:

$$
5 *(30000+10000+5000+4500+9000)=292500 \text { rubles }
$$

By 31.03.2020, the family will have accumulated $849400+550000-292500=\mathbf{1} 106900$ rubles
Answer: In 2 years, the family can save 1,106,900 rubles

## Evaluation Criteria: