Question

Варя обещала папе съесть суп перед тем, как пойти смотреть мультики. Если бы она выполнила обещание, она бы съела суп как раз к началу мультика. К сожалению, первую половину супа Варя ела со скоростью в два раза меньше запланированной. Во сколько раз теперь ей нужно увеличить скорость поедания супа, чтобы успеть съесть весь суп до начала мультфильма? 1 В 2 раза 2 В 3 раза 3 В 4 раза 4 Во сколько бы раз Варя ни увеличила скорость поедания супа, она все равно уже не успеет к началу мультика

Answer 1

Ответ:

Варя должна увеличить скорость поедания в 4 раза

Answer 2

Варя увеличит скорость педания супа в 4 раза

Answer 3

Problem Analysis

Varya promised her father that she would finish eating her soup before watching cartoons. However, she ate the first half of the soup at a speed that was half of what she had planned. We need to determine how much she needs to increase her eating speed in order to finish the entire soup before the start of the cartoon.

Solution

Let's assume that Varya initially planned to eat the soup at a speed of 1 unit per minute. Since she ate the first half of the soup at a speed that was half of what she had planned, she ate it at a speed of 0.5 units per minute.

To find out how much she needs to increase her eating speed, we can calculate the remaining time she has to finish the soup and divide it by the remaining amount of soup.

Let's assume the total amount of soup is 1 unit (for simplicity). Since she ate the first half of the soup at a speed of 0.5 units per minute, she ate 0.5 units of soup in the first half of the time.

The remaining time to finish the soup is the same as the time it took her to eat the first half of the soup. So, she has 0.5 units of soup left to eat and 0.5 units of time left.

To calculate the required eating speed, we divide the remaining amount of soup by the remaining time:

Required eating speed = Remaining amount of soup / Remaining time

Required eating speed = 0.5 units / 0.5 units = 1 unit per minute

Therefore, Varya needs to increase her eating speed to 1 unit per minute in order to finish the entire soup before the start of the cartoon.

Answer

Varya needs to increase her eating speed to 1 unit per minute in order to finish the entire soup before the start of the cartoon.