Question

Буратино получил от Мальвины задание решить 240 примеров за 10 дней. Но он решал ежедневно на 2 примера меньше, чем запланировала Мальвина. Сколько примеров решил Буратино за 10 дней?

Answer 1

240/10=24 примера должен решать Буратино в день
24-2=22 примера решает Буратино в день
22*10=220 примеров решил Бурвтино за 10 дней

Answer 2

240:10=24 примера по Мальвине

24-2=22 примера решал Буратино в день

22*10=220 примеров за 10 дней

Answer 3

Calculation of the Number of Problems Solved by Buratino

To calculate the number of problems solved by Buratino in 10 days, we need to consider that he solves 2 fewer problems each day compared to what Malvina planned for him.

Let's assume that Malvina planned for Buratino to solve x problems each day. According to the given information, Buratino solves 2 fewer problems each day than planned by Malvina. Therefore, the number of problems Buratino solves each day can be represented as (x - 2).

Since Buratino solves problems for 10 days, we can calculate the total number of problems solved by multiplying the number of problems solved each day by the number of days:

Total number of problems solved by Buratino = (x - 2) * 10

To find the value of x, we can use the fact that Malvina planned for Buratino to solve 240 problems in total. Therefore, we can set up the following equation:

(x - 2) * 10 = 240

Solving this equation will give us the value of x, which represents the number of problems Malvina planned for Buratino to solve each day.

Let's solve the equation:

(x - 2) * 10 = 240

Expanding the equation:

10x - 20 = 240

Adding 20 to both sides:

10x = 260

Dividing both sides by 10:

x = 26

Therefore, Malvina planned for Buratino to solve 26 problems each day.

Now, let's substitute this value back into the equation to find the total number of problems solved by Buratino:

Total number of problems solved by Buratino = (26 - 2) * 10 = 24 * 10 = 240

Buratino solved 240 problems in 10 days.