Question

В одной коробке 1/4кг конфет, а в другой-на 1/5кг больше.Сколько конфет в двух коробках?Выразите ответ в граммах

Answer 1

1) 1/4 + 1/5 = 5/20 + 4/20 =9/20 (кг) конфет во второй коробке
2) 1/4 + 9/20 = 5/20 + 9/20 = 14/20 = 7/10 = 0,7 (кг) конфет в 2-х коробках)
0,7 кг = 700г
Ответ. 700г конфет в двух коробках

Answer 2

Problem Analysis

We are given two boxes of candies. The first box weighs 1/4 kg, and the second box weighs 1/5 kg more than the first box. We need to determine the total weight of the candies in both boxes, expressed in grams.

Solution

To find the total weight of the candies in both boxes, we need to add the weights of the two boxes together. Let's calculate the weight of each box first.

The first box weighs 1/4 kg. To convert this weight to grams, we need to multiply it by 1000 (since there are 1000 grams in 1 kilogram).

Weight of the first box = 1/4 kg * 1000 g/kg = 250 g

The second box weighs 1/5 kg more than the first box. To find the weight of the second box, we need to add 1/5 kg to the weight of the first box.

Weight of the second box = Weight of the first box + 1/5 kg * 1000 g/kg

Now, let's calculate the weight of the second box.

Weight of the second box = 250 g + 1/5 kg * 1000 g/kg

To simplify the calculation, let's convert 1/5 kg to grams before adding it to the weight of the first box.

1/5 kg * 1000 g/kg = 200 g

Weight of the second box = 250 g + 200 g = 450 g

Finally, to find the total weight of the candies in both boxes, we need to add the weights of the first and second boxes together.

Total weight of the candies in both boxes = Weight of the first box + Weight of the second box

Total weight of the candies in both boxes = 250 g + 450 g = 700 g

Therefore, there are 700 grams of candies in the two boxes.

Answer

There are 700 grams of candies in the two boxes.