Question

В первом мотке 48 м провода, а во втором 39 м, Сколько рублей стоит 1 м провода если за первый моток заплатили на 180 руб, больше чем за второй?

Answer 1

48-39=9. на 9 метров второй моток меньше первого
За эти 9 метров заплатили 180р. Значит 180:9=20 р стоит 1 м провода

Answer 2

Let's assume that the cost of 1 meter of wire is x rubles. The total cost of the first roll of wire is 48m * x rubles. The total cost of the second roll of wire is 39m * x rubles. We are given that the cost of the first roll is 180 rubles more than the cost of the second roll. Mathematically, this can be expressed as: 48m * x = 39m * x + 180 Simplifying the equation, we get: 9m * x = 180 Dividing both sides of the equation by 9m, we get: x = 20 Therefore, the cost of 1 meter of wire is 20 rubles.