Schools

Three schools are attended by 678 pupils. To the first attend 21 students more and to the third 108 fewer students than to second school. How many students attend the schools?

Correct answer:

a =  276
b =  255
c =  147

Step-by-step explanation:


a+b+c=678
a=21+b
c=b-108

a+b+c = 678
a-b = 21
b-c = 108

a = 276
b = 255
c = 147

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!



avatar







Tips to related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions:

  • Stamps and albums
    stamp Michail has in three albums stored 170 stamps. In the first album, there are 14 more than in the second and in the second is by 1/5 less than in the third. How many stamps are in the first album?
  • Rings groups
    venn 27 pupils attend some group; dance group attends 14 pupils, 21 pupils sporty group and dramatic group 16 pupils. Dance and sporting attend 9 pupils, dance and drama 6 pupil, sporty and dramatic 11 pupils. How many pupils attend all three groups?
  • Boxes
    krabice Two hundred boxes have been straightened in three rows. The first row was 13 more than in the second, and in the second was one fifth more than in the third one. How many boxes are in each row?
  • Three granaries
    vaha Three granaries hold 7,800 metric cent (q) of grain. In the first, 70 tonnes of grain was more than the second and in the third it was 120 tonnes less than in the second. How many grain were in each granary?
  • 9.A
    exam 9.A to attend more than 20 students but fewer than 40 students. A third of the pupils wrote a math test to mark 1, the sixth to mark 2, the ninth to mark 3. No one gets mark 4. How many students of class 9.A wrote a test to mark 5?
  • Three friends
    pizza Divide 570 euros to three friends so that first will get 50 euros less than the second and third twice more than the first. How many euros will get everyone?
  • Potatoes bags
    vrece_zemiakov I have three bags with 21 kg potatoes. The first bag is 5.5 kg more than in the second bag, and the third is 0.5 kg more than in the second bag. Determine how many kgs of potatoes are in each bag.
  • Elections
    elections The elections attended a total 4818 voters. First day 39 men more than women, the second day 21 women more than men. How many women attended elections?
  • Word problem
    hungary-flag 348 students were on holiday in Hungary. 133 bought pizza, chips 28 pupils, 25 pupils bought soda, butter 26 pupils, 15 pupils fruits, vegetables 29 students. How much pay for all the food, if every meal cost 5.3 euros?
  • The library
    books Anna stored a total of 126 books in three compartments of the library. There are 6 books more in the first compartment than in the second one. The number of books in the second compartment is the arithmetic average of the number of books in the first and
  • Average height
    vyska In a class are 34 students. The average height of the students is 165 cm. What will be the average height of students in the classroom when two pupils, tall 176 cm and 170 cm, moved from this school/class? The average height in meters of all the students
  • Summerjob
    bulb2 Three students participated in the summer job. Altogether they earn 1780, -. Peter got a third less than John, and Paul got 100 more than Peter. How much earn every one of them?
  • Three workshops
    workers There are 2743 people working in three workshops. In the second workshop works 140 people more than in the first and in third works 4.2 times more than the second one. How many people work in each workshop?
  • 25 pupils
    skola 25 pupils attend the school dance group, which is 5 percent of all pupils in the school. The judo class is attended by 20 pupils of the school, a quarter of whom also go to a dance group. How many schoolchildren do not go to a dance or judo group?
  • Boys and money
    money 270 USD boys divided so that Peter got three times more than Paul and Ivan has 120 USD more than Paul. How much each received?
  • Three days
    skolske-zosity During the three days sold in stationery 1490 workbooks. The first day sold about workbooks more than third day. The second day 190 workbooks sold less than third day. How many workbooks sold during each day?
  • Factory and divisions
    factory The factory consists of three auxiliary divisions total of 2,406 employees. The second division has 76 employees less than the 1st division, and the 3rd division has 212 employees more than the 2nd. How many employees have each division?