Question

Фермеру нужно купить лошадь. Чтобы ее купить он может продать 15 центнеров пшеницы, но ему будет не хватать 80 рублей. Если он продаст 20 центнеров пшеницы, то у него будут лишние 10 рублей. Сколько стоит лошадь?

Answer 1

Х-цена  центнера пшеницы
15х+80=20х-10
20х-15х=80+10
5х=90
х=90/5=18
18*20-10=360-10=350р стоит лошадь

Answer 2

Calculation of the Cost of the Horse

To calculate the cost of the horse, we need to analyze the information provided. The farmer can sell 15 centners (metric tons) of wheat but will be short by 80 rubles to buy the horse. However, if the farmer sells 20 centners of wheat, they will have an extra 10 rubles.

Let's break down the given information:

- Selling 15 centners of wheat: Short by 80 rubles. - Selling 20 centners of wheat: Extra 10 rubles.

To find the cost of the horse, we need to determine the price difference between selling 15 centners and selling 20 centners of wheat.

Calculation Steps:

1. Calculate the price difference per centner of wheat: - Price difference = Extra money - Shortage - Price difference = 10 rubles - (-80 rubles) = 90 rubles

2. Calculate the price difference for 5 centners of wheat: - Price difference for 5 centners = Price difference per centner * 5 centners - Price difference for 5 centners = 90 rubles * 5 = 450 rubles

3. Calculate the cost of the horse: - Cost of the horse = Price difference for 5 centners + Shortage - Cost of the horse = 450 rubles + (-80 rubles) = 370 rubles

Therefore, the cost of the horse is 370 rubles.

Please note that the given information does not provide the exact price of wheat or the horse. The calculations are based on the provided information and assumptions made during the calculation process.