Question

Юля, Катя и Люда покупали наклейки. Юля купила 5 наклеек, Катя 7. Юля и Катя купили наклеек в 4 раза больше, чем Люда. Сколько наклеек купила Люда? сколько купили обе девочки вместе

Answer 1

5+7=12(накл.)-Юля и Катя;
12÷4=3(накл.)-Люда

Answer 2

5+7=12(н) купили Юля и Катя
12:4=3(н) купила Люда
Ответ:3наклейки

Answer 3

Problem Analysis

We are given that Yulia bought 5 stickers, Katya bought 7 stickers, and Yulia and Katya together bought 4 times more stickers than Lyuda. We need to find out how many stickers Lyuda bought and how many stickers Yulia and Katya bought together.

Solution

Let's assume the number of stickers Lyuda bought is x.

According to the given information, Yulia and Katya together bought 4 times more stickers than Lyuda. This can be expressed as:

Yulia + Katya = 4 * Lyuda

We know that Yulia bought 5 stickers and Katya bought 7 stickers. Substituting these values into the equation, we get:

5 + 7 = 4 * x

Simplifying the equation:

12 = 4 * x

Dividing both sides of the equation by 4:

x = 3

Therefore, Lyuda bought 3 stickers.

To find out how many stickers Yulia and Katya bought together, we can add the number of stickers each of them bought:

Yulia + Katya = 5 + 7 = 12

Therefore, Yulia and Katya together bought 12 stickers.

Answer

Lyuda bought 3 stickers, and Yulia and Katya together bought 12 stickers.