Question

В результате пожара, устроенного школьниками, загорелись жилой дом и подсобные помещения общей стоимостью 25 тыс. руб­лей. Сколько лет хозяевам нужно собирать деньги на строительство нового дома, если их общий средний месячный заработок составля­ет 500 руб., а откладывать на строительство они могут только 35% от заработка?

Answer 1

11 лет 25000÷175=142 142÷12=11

Answer 2

Calculation of Time Needed to Save Money for a New House

To calculate the time needed for the homeowners to save money for a new house, we need to consider the following information:

- The total cost of the house and auxiliary premises is 25,000 rubles. - The homeowners' average monthly income is 500 rubles. - They can save only 35% of their income for construction purposes.

To determine the time needed, we can calculate the monthly savings and then divide the total cost of the house by the monthly savings.

Calculation Steps:

1. Calculate the monthly savings: - Monthly income: 500 rubles - Savings percentage: 35% - Monthly savings: 500 rubles * 35% = 175 rubles.

2. Calculate the time needed to save the total cost of the house: - Total cost of the house: 25,000 rubles - Time needed: 25,000 rubles / 175 rubles = 142.86 months.

Since we cannot have a fraction of a month, we need to round up to the nearest whole month. Therefore, the homeowners would need approximately 143 months to save enough money for the construction of a new house.

Please note that this calculation assumes a constant income and savings rate, without considering any additional expenses or changes in income over time.