1+1+3+24+5+5+123=?

1+1+3+24+5+5+123=?


1+1+3+24+5+5+123=222



125 to 36 for simplification ratio


Can't simplify, no common divisor!



It takes 40 hours for one person to finish sorting out a batch of books. Now it is planned that some people will do it for 4 hours first, and then two more people will work with them for 8 hours. Assuming that these people have the same work efficiency, how many people should be assigned to work first?


According to the meaning of the question, we can get: 4x40 + 8 (x + 2) 40 = 1, we can get: X10 + X + 25 = 1, that is: x + 2 (x + 2) = 10, we can get: x = 2 answer: we should arrange 2 people to work first



X=6+(6+X)×1/3 22-X×1/4-1/5X=1 (126-X)×2/9-1/6X=7
X=?X=?X=?


X=6+(6+X)×1/3
X=8+1/3X
2/3X=8
X=12
22-X×1/4-1/5X=1
-9/20X=-21
X=140/3
(126-X)×2/9-1/6X=7
28-7/18X=7
7/18X=21
X=54



There are 85 workers in the workshop. On average, each of them can process 16 big gears or 10 small gears every day. We also know that two big gears and three small gears form a set. How can we arrange the workers to make the products just complete?


Suppose the number of people producing big gears is x, then the number of people producing small gears is 85-x, ∵ the average person can process 16 big gears or 10 small gears every day, ∵ the number of big gears produced by X people is 16x, and the number of small gears produced by 85-x people is 10 × (85-x) ∵ two big gears and three small gears form a set



There are 85 workers in the workshop. On average, each of them can process 16 big gears or 10 small gears every day. We also know that two big gears and three small gears form a set. How can we arrange the workers to make the products just complete?


Suppose the number of people producing big gears is x, then the number of people producing small gears is 85-x, ∵ the average person can process 16 big gears or 10 small gears every day, ∵ the number of big gears produced by X people is 16x, (85-x) the number of small gears produced by 85-x people is 10 × (85-x) ∵ two big gears and three small gears form a set, ∵ 16x10 × (85 − x) = 23, the solution is x = 25, and x = 25 is the original formula 85-x = 60. A: the number of people who produce big gears is 25, while the number of people who produce small gears is 60



A store will first increase the original price of a certain type of color TV by 40%, and then write "big reward, 20% discount" in the advertisement. After customers complain, the law enforcement department will impose a fine of 2700 yuan per set according to 10 times of the illegal income. Ask for the original price of each color TV


Suppose the original price of each color TV set is x yuan, then it is: 10 × [(1 + 40%) x × 0.8-x] = 2700, the solution is: x = 2250, answer: the original price of each color TV set is 2250 yuan



A and B set out from a and B at the same time, facing each other. When they set out, their speed ratio was 3:2. After they met for the first time, a's speed increased by 20%, B's speed increased by 30%. So when a arrives at B, B is still 14 kilometers away from a, so how many kilometers is the distance between a and B?
A piece of farmland is cultivated by three tractors (a, B and C). If the two tractors are used at the same time, the land of 18 hectares will be completely cultivated by the first tractor. If the two tractors are used together, the land of 27 hectares will be completely cultivated by the second tractor?


Before meeting, the speed ratio of a and B is 3:2, after meeting, the speed of a is increased by 20%, which is 3x (1 + 20%) = 3.6; the speed of B is increased by 30%, which is 2x (1 + 30%) = 2.6, which is 3.6:2.6, that is, at 18:13, the first meeting, a walked 3 / 5 of the whole journey, B walked 2 / 5 of the whole journey, after meeting, a walked the remaining 2 / 5, B walked 13 /



1. A train from a to B, 3.5N line, 8 / 5 of the whole journey, according to this calculation, how many hours to reach B?
2. For a project, Party A works alone for 3 days, and Party B works alone for 4 days to complete 1 / 5 of the total. How many days does Party A and Party B work together?
3. The three vehicles of a, B and C transport 169 tons of coal, 12 tons more than B, and 7 tons more than B. how many tons does a transport?
Additional 5 points for detailed explanation
Xiao Li took some money to buy eight coats and 10 trousers. Now he has bought one pair of trousers. With the rest of the money, how many sets can he buy?
The three brothers jointly bought a TV set. The money from the eldest brother is equivalent to two-thirds of the total money from the second and third brothers. The money from the second brother is equivalent to one fourth of the total money from the first and third brothers. The money from the third brother is 1200 yuan. How much is the TV set?
The express and local trains go from place a to place B at the same time. When the express train reaches half of the whole journey, the local train reaches 40km; when the express train reaches B, the local train is still 1 / 5 of the whole journey?
7. A and B, a walk 80 meters per minute, B walk 72 meters per minute. It took them four minutes more to walk from a to B than a. A / b distance
The first question is five eighths


1. A train from a to B, 3.5N line, 8 / 5 of the whole journey, according to this calculation, how many hours to reach B?
Eight fifths of the way? That's early
2. It takes 1 / (1 / 15 + 1 / 12) = 6 and 2 / 3 days to complete the cooperation
3. If we subtract the extra 12 + 7 = 19, the total amount will be 169-19 = 150 tons, which will be divided into three vehicles and transported by one vehicle
50 tons, Party A transported 12 tons more, that is, the actual party a transported 150 + 12 = 162 tons



Who can help me solve the following math problems?
1. Grandfather and granddaughter walk along the square pond with a side length of 100 meters. Granddaughter walks 50 meters every minute, and grandfather walks 46 meters every minute. How many minutes does it take for granddaughter to see grandfather at least? 2. For any natural number n, when n is odd, add 121, when n is even, divide by 2. This is an operation. Now in the continuous operation of three digit 241, will there be 100 in the operation process, Why?


Let's say that it takes at least X minutes for granddaughter to see her grandfather, 100 + 46x = 50x, 4x = 100, x = 25, that is, it takes at least 25 minutes for granddaughter to see her grandfather. 2. For any natural number n, when n is odd, add 121, when n is even, divide by 2, this is a single operation, so the first step: 241 + 121 = 362362 / 2 = 1