Question

Продали 4 волейбольных и 7 баскетбольных мячей.Баскетбольные мячи стоили 420 литов.За сколько продали волейбольные мячи,если баскетбольный мяч на 20 литов дешевле волейбольного?

Answer 1

Ответ:

Пошаговое объяснение:

4 волейбольных - ? литов

7 баскетбольных - 420 литов ( 1 мяч дешевле на 20 литов ,чем волейбольный)

решение

420:7=60 литов стоит баскетбольный мяч

60+20=80 литов стоит волейбольный мяч

80·4=320 литов стоят 4 волейбольных мяча

Ответ : за 320 литов продали волейбольные мячи

Answer 2

Problem Analysis

To solve this problem, we need to find the selling price of the volleyball balls given that the basketball balls were sold for 420 litov and were 20 litov cheaper than the volleyball balls. We are given that 4 volleyball balls and 7 basketball balls were sold.

Solution

Let's assume the selling price of the volleyball balls is V litov. Since the basketball balls were sold for 420 litov and were 20 litov cheaper than the volleyball balls, we can set up the following equation:

7 * (V - 20) + 4 * V = Total Selling Price

Substituting the given values, we get:

7 * (V - 20) + 4 * V = 420

Simplifying the equation:

7V - 140 + 4V = 420 11V - 140 = 420 11V = 560 V = 560 / 11 V ≈ 50.91

Therefore, the selling price of the volleyball balls is approximately 50.91 litov.

Answer

The selling price of the volleyball balls is approximately 50.91 litov.