Question

327. Олег, Сергій та Віталій купили за 12 грн подарунок для друга, до того ж, Олег витратив грошей на 2 грн менше, а Сергій — в 1,5 разу більше, ніж Віталій. Скільки грошей витратив на купівлю подарунка кожен хлопець? й день було продано овочів​

Answer 1

Ответ:

1) 12-2=10(грн) витратив Олег.

2) 12×1,5= 18(грн) витратив Сергій.

Відпоавідь сам напиши

Answer 2

To solve this problem, let's break it down step by step.

1. We know that Oleg, Sergey, and Vitaliy bought a gift for a friend for a total of 12 UAH. 2. Oleg spent 2 UAH less than the total amount spent. 3. Sergey spent 1.5 times more than Vitaliy.

Let's assign variables to the unknown amounts spent by each person: - Let's say Oleg spent x UAH. - Vitaliy spent y UAH. - Sergey spent 1.5y UAH.

Now we can set up an equation to solve for the unknowns:

x + y + 1.5y = 12

To simplify the equation, we can combine like terms:

x + 2.5y = 12

Now we have one equation with two variables. Since we don't have enough information to solve for both variables, we can express one variable in terms of the other and substitute it back into the equation.

Let's solve for x in terms of y:

x = 12 - 2.5y

Now we can substitute this expression for x back into the equation:

12 - 2.5y + y + 1.5y = 12

Combining like terms:

12 + 0.5y = 12

Subtracting 12 from both sides:

0.5y = 0

Dividing both sides by 0.5:

y = 0

Now we know that Vitaliy spent 0 UAH on the gift. We can substitute this value back into the expression for x:

x = 12 - 2.5(0) x = 12

Therefore, Oleg spent 12 UAH on the gift, Sergey spent 0 UAH, and Vitaliy spent 0 UAH.

So, the amounts spent by each boy are as follows: - Oleg: 12 UAH - Sergey: 0 UAH - Vitaliy: 0 UAH

Please note that the given problem does not provide information about the number of vegetables sold on a particular day, so we cannot provide an answer to that part of the question.