Question

Отец купил три дыни масса первой дыни 5,25кг,что на 2,5кг меньше массы второй и на 1,15 кг больше массы третьей дыни найдите массу каждой дыни

Answer 1

Первая дыня 5,25 кг
вторая дыня 5,25 + 2,5 = 7,75 кг
третья дыня 5,25-1,15=4,1 кг

Answer 2

5,25+2,5=7,75 кг масса второй дыни
5,25-1,15=4,10 кг масса третьей дыня 

Answer 3

Problem Analysis

The problem states that the father bought three watermelons. The weight of the first watermelon is 5.25 kg, which is 2.5 kg less than the weight of the second watermelon. The weight of the first watermelon is also 1.15 kg more than the weight of the third watermelon. We need to find the weight of each watermelon.

Solution

Let's assume the weight of the second watermelon is x kg. According to the problem, the weight of the first watermelon is 2.5 kg less than the weight of the second watermelon, so the weight of the first watermelon is x - 2.5 kg. The weight of the third watermelon is 1.15 kg less than the weight of the first watermelon, so the weight of the third watermelon is (x - 2.5) - 1.15 kg.

To find the value of x, we can set up an equation using the information given in the problem:

Weight of the first watermelon + Weight of the second watermelon + Weight of the third watermelon = Total weight of the three watermelons

Substituting the weights we found earlier:

(x - 2.5) + x + ((x - 2.5) - 1.15) = 5.25 + x

Simplifying the equation:

3x - 6.15 = 5.25 + x

2x = 11.4

x = 5.7

Now that we have the weight of the second watermelon (x), we can find the weights of the other two watermelons:

Weight of the first watermelon = x - 2.5 = 5.7 - 2.5 = 3.2 kg

Weight of the third watermelon = (x - 2.5) - 1.15 = (5.7 - 2.5) - 1.15 = 2.05 kg

Therefore, the weights of the three watermelons are as follows: - The first watermelon weighs 3.2 kg - The second watermelon weighs 5.7 kg - The third watermelon weighs 2.05 kg

Answer

The weights of the three watermelons are as follows: - The first watermelon weighs 3.2 kg - The second watermelon weighs 5.7 kg - The third watermelon weighs 2.05 kg