Question

Георгий в декабре весил 72 кг. В январе он стал весить на 10% больше, а в феврале он прибавил в весе еще на 18 кг. Определите, сколько процентов от декабрьского веса составляет вес Георгия в феврале

Answer 1

нужно выяснить сколько стал весить Георгий в январе: 72 · 1,1 = 79,2 (кг). В феврале он прибавил еще 18 кг, следовательно его вес составил 79,2 + 18 = 97,2 (кг). 

Теперь посчитаем какую часть составляет новый вес Георгия от изначального -  97,2 : 72 = 1,35 = 135%

Answer 2

72*10/100=7,2кг-разница
72+7,2=79,2кг-в январе
в феврале: 79,2+17,2=96,4кг
96,4:72*100%=133,8%≈134%

Answer 3

Calculation of Georgiy's weight in February

To determine the percentage of Georgiy's weight in February compared to his weight in December, we need to calculate his weight in February and then calculate the percentage increase.

Given information: - Georgiy weighed 72 kg in December. - In January, he gained 10% more weight. - In February, he gained an additional 18 kg.

Let's calculate Georgiy's weight in January and February:

1. Weight in January: - Georgiy gained 10% more weight in January, which means he added 10% of his weight in December to his December weight. - 10% of 72 kg is 7.2 kg. - Therefore, Georgiy's weight in January was 72 kg + 7.2 kg = 79.2 kg.

2. Weight in February: - In February, Georgiy gained an additional 18 kg. - Therefore, Georgiy's weight in February was 79.2 kg + 18 kg = 97.2 kg.

Calculation of the percentage increase

To calculate the percentage increase of Georgiy's weight in February compared to his weight in December, we can use the following formula:

Percentage increase = ((New value - Old value) / Old value) * 100

Using this formula, we can calculate the percentage increase:

- Old value (Georgiy's weight in December) = 72 kg - New value (Georgiy's weight in February) = 97.2 kg

Percentage increase = ((97.2 kg - 72 kg) / 72 kg) * 100

Calculating this expression, we find that the percentage increase is approximately 34.17%.

Therefore, Georgiy's weight in February is approximately 34.17% more than his weight in December.