Question

Коля в апреле весил 100 кг. В мае он сбросил 10 кг, а в июне он стал весить ещё на 30% меньше, по сравнению с маем. Определите, сколько процентов от апрельского веса составляет вес Коли в июне.

Answer 1

Ответ:

63%

Пошаговое объяснение:

1) 100-10=90 кг весил в мае

2) 90-90*0,3=90-27=63кг весил в июне

3) 63/100*100% =63%

Answer 2

Calculating Percentage Change in Weight

To calculate the percentage change in Kolya's weight from April to June, we can follow these steps:

1. Initial Weight in April: 100 kg 2. Weight Loss in May: 10 kg 3. Weight in June: 30% less than in May

Let's calculate the weight in June and then determine the percentage change from April to June.

Calculations

1. Weight in May: 100 kg - 10 kg = 90 kg 2. Weight in June: 90 kg - (30% of 90 kg) = 90 kg - 27 kg = 63 kg

Now, let's calculate the percentage change from April to June.

Percentage Change Calculation

The percentage change from April to June can be calculated using the formula:

\[ \text{Percentage Change} = \left( \frac{\text{Final Value} - \text{Initial Value}}{\text{Initial Value}} \right) \times 100 \]

Substituting the values: \[ \text{Percentage Change} = \left( \frac{63 kg - 100 kg}{100 kg} \right) \times 100 = \left( \frac{-37 kg}{100 kg} \right) \times 100 = -37\% \]

Result

Kolya's weight in June is 37% less than his weight in April.