For processing the same parts, worker a processes 49 parts per hour, and worker B processes 51 parts per hour. What is the ratio of work efficiency between worker a and worker B? What is the ratio

For processing the same parts, worker a processes 49 parts per hour, and worker B processes 51 parts per hour. What is the ratio of work efficiency between worker a and worker B? What is the ratio

The ratio of a to B is 49:51, and the ratio is 49 / 51
If 1 / 8 of the total number of books on shelf a is put on shelf B, the number of books on the two shelves is equal. The original ratio of books on shelf a and shelf B is ()
If 1 / 8 of the total number of books on shelf a is put on shelf B, the number of books on the two shelves is equal. The original ratio of books on shelf a and shelf B is (4:3)
There are two workshops a and B in the manufacture of electrical parts, and the number of people in workshop a is 75% of that in workshop B. if 10 people are transferred from workshop B to workshop a, the number of people in workshop a will increase,
At this time, the number of people in workshop a is just 80% of that in workshop B. How many people were there in the two workshops?
10 * 2 / (80% - 75%) = 400, 400 * 75% = 300
There are 300 people in workshop a and 400 people in workshop B
There are 270 books on the two bookshelves A and B, 35 of which are taken out from bookshelf A and 34 from bookshelf B. the ratio of the number of books on the two bookshelves is 2:1. How many books are there on the two bookshelves?
The equation: 12 × (1-35) x = (270-x) (270-x) (270-x) (1-35) x = (270-x) (270-x) (1-34) (1-34) (1-34) (1-34) (270-x) (270-x) (1-x) (1-x) (270-x) (1-x) (1-x) (1-x) (1-x) (1-34) (1-34) (1-x) (270-x) is derived from the equation: 12 × (1-35) x (1-35) x = (270-x) (270-x) (270-x) (1-x) (270-x) (1-x) (1-34) (1-34) (1-34) (1-34) (1-34) (1-270-34) (1-34) (1-27-x) (1-x) (1-34) (1-34) (1-27-x) (1-x) (1-x) (1-34) (1-x) (1-34) (1-34) (1-27-27-x sp; &X = 150.270-150 = 120 (copies). Answer: there are 150 original books on shelf a and 120 original books on shelf B
A workshop produces 120 parts of a or 80 parts of B every day. Only 3 or 2 parts of a and B can be made into a set. How to arrange the number of days for two parts of a and B
X days for part a, and (30-x) days for Part B. according to the meaning of the title, we get 120x * 2 = (30-x) X80 * 3, x = 15
A: 15 days for part a and 15 days for Part B
There are 270 books on the two bookshelves A and B, 35 of which are taken out from bookshelf A and 34 from bookshelf B. the ratio of the number of books on the two bookshelves is 2:1. How many books are there on the two bookshelves?
Suppose there are x books in shelf a, then there are 270-x books in shelf B. The equation is: 12 × (1-35) x = (270-x) × (1-34) & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 12 × 25X = (270-x) × 14, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp
It takes 15 days for workshop a to produce a batch of auto parts, 10 days for workshop B to produce them separately, and how many days can they produce them together?
The number of days needed = 1 ÷ (1 / 15 + 1 / 10) = 1 ÷ 5 / 30 = 6 days
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The books on bookshelf a are four fifths of those on bookshelf B. If 16 books are taken from bookshelf A and 12 books are taken from bookshelf B, the remaining books on bookshelf a are three thirds of those on bookshelf B
How many books did a and B have on each shelf?
Finally, two-thirds
Let x, y
x=4y/5,
3(x-16)=2(y-12),
x=48,y=60
In the following question, △ is the horizontal line in the middle of a few parts. Let's set B x, a 4 5x
2÷3（x-12)=4÷5X-16
2÷3X-8=4÷5X-16
2÷3x-4÷5x=8-16
10÷15x-12÷15x=-8
-2÷15=-8
x=(-8)(-15 2）
x=60
4 / 5x = 60 times 4 / 5 = 48 (this is a)
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If 30 people are sent from team a to team B, the ratio between team a and team B will be 3:2. How many people are there in each team?
3 + 2 = 5, 7 + 3 = 10, 30 ^ (25-310), = 30 ^ 110, = 300 (people); the number of team a: 300 × 710 = 210 (people); the number of team B: 300-210 = 90 (people); answer: the original number of team a is 210, the original number of team B is 90
There are 270 books on the two bookshelves, of which 45 are borrowed by a and 34 are borrowed by B. the remaining books on the two bookshelves are equal. How many are the original books on the two bookshelves?
If a borrows 45 and there are still 15 left, B borrows 34 and there are still 14 left, it means that 15 of a is equal to 14 of B. if there are two bookshelves with X books left, then there are 5x books in a bookshelf and 4x books in B bookshelf. According to the meaning of the question, we can get the equation: 5x + 4x = 270, & nbsp; & nbsp; 9x = 270, & nbsp; & nbsp; & nbsp; X = 30