Question

В ящике было 120 кг риса.Через несколько дней в ящике осталось 25% находившегося там риса.Сколько риса взяли из ящика?

Answer 1

1) 100 - 25 = 75 % риса взяли

2) 120 кг  х 75 % : 100 % = 90 кг риса взяли из ящика 

это из контр.работы 5 класс ,мой младший  брат вчера решал.

Answer 2

120 - 100%

х - 25%

Решаем пропорцию:

120*25/100=30кг 

120-30=90 кг

Ответ: 90 кг.

Answer 3

Calculation of Rice Taken from the Box

To calculate the amount of rice taken from the box, we need to determine the remaining amount of rice in the box after a few days.

Given that there were initially 120 kg of rice in the box and after a few days, only 25% of the rice remained, we can calculate the amount of rice taken as follows:

1. Calculate the remaining amount of rice in the box: - 25% of 120 kg = 0.25 * 120 kg = 30 kg.

2. Calculate the amount of rice taken from the box: - Initial amount of rice - Remaining amount of rice = 120 kg - 30 kg = 90 kg.

Therefore, 90 kg of rice were taken from the box.