Question

1. За 3 ч работы 6 мастериц изготовили 36 кувшинов,поровну каждая.Сколько кувшинов сделает одна мастерица за 8 ч работы? 2.За 4ч ученик изготовил 128деталей. Мастер за 1ч делает на 9 деталей больше,чем ученик.За сколько часов мастер изготовит 246деталей?

Answer 1

36:3= 12 (к) 6 мастериц делают за 1ч

12:6=2 к делает 1 мастерица за час

8*2 16 к за 8 часов

 

 

 

128:4= 32 дет ученик делает за 1ч

32+9=41 дет делает мастер за 1ч

246:41=6 часов

Answer 2

1. To solve the first problem, we can set up a proportion to find out how many jugs one craftswoman can make in 8 hours.

Let's assume that each craftswoman can make x jugs in 8 hours.

We know that 6 craftswomen can make 36 jugs in 3 hours.

Setting up the proportion, we have:

6 craftswomen / 36 jugs = 1 craftswoman / x jugs

Cross-multiplying, we get:

6x = 36 * 1

Simplifying, we have:

6x = 36

Dividing both sides by 6, we find:

x = 6

Therefore, one craftswoman can make 6 jugs in 8 hours.

2. To solve the second problem, we can set up an equation to find out how many hours the master will take to make 246 parts.

Let's assume that the apprentice can make y parts in 4 hours.

We know that the master can make 9 more parts than the apprentice in 1 hour.

Setting up the equation, we have:

4y + 1(4y + 9) = 246

Simplifying, we have:

4y + 4y + 9 = 246

Combining like terms, we get:

8y + 9 = 246

Subtracting 9 from both sides, we have:

8y = 237

Dividing both sides by 8, we find:

y = 29.625

Since we can't have a fraction of a part, we need to round up to the nearest whole number. Therefore, the apprentice can make 30 parts in 4 hours.

Now, we can substitute the value of y into the equation to find out how many hours the master will take to make 246 parts:

4(30) + 1(4(30) + 9) = 246

Simplifying, we have:

120 + 4(30) + 9 = 246

120 + 120 + 9 = 246

249 = 246

This equation is not true, which means there is no solution.

Therefore, the master cannot make 246 parts in any number of hours, given the information provided.