Eight chairs

There are eight chairs by the table and one more child sitting on each one. There are two times more girls than boys. How many girls and how many boys can there be?

Correct result:

d₁ =  2
c₁ =  1
d₂ =  4
c₂ =  2

Solution:

$d_1=2$

$$\begin{gathered} c_1=d_1\mathrm{/}2=2\mathrm{/}2=1 \\ {s}_1=d_1+c_1=2+1=3 \end{gathered}$$

$d_2=4$

$$\begin{gathered} c_2=d_2\mathrm{/}2=4\mathrm{/}2=2 \\ {s}_2=d_2+c_2=4+2=6 \end{gathered}$$

Try another example

Showing 0 comments:

Related math problems and questions:

• The school
  The school has 268 boys. Girls are 60 more than boys. How many children are there at school?
• Glasses
  There are 36 pupils in the class. Nine girls wear glasses. Boys with glasses are five less than girls without glasses. Boys without glasses are two times more than girls without glasses. How many boys and how many girls?
• Pupils
  There are 32 pupils in the classroom, and girls are two-thirds more than boys. a) How many percents are more girls than boys? Round the result to a whole percentage. b) How many are boys in the class? c) Find the ratio of boys and girls in the class. Writ
• Points in space
  There are n points, of which no three lie on one line and no four lies on one plane. How many planes can be guided by these points? How many planes are there if there are five times more than the given points?
• Boys and girls
  There are 20 boys and 10 girls in the class. How many different dance pairs can we make of them?
• Classroom
  There are eighty more girls in the class than boys. Boys are 40 percent and girls are 60 percent. How many are boys and how many girls?
• Chairs
  In the two dining rooms in the recreational building, there are equally arranged chairs around the tables. A maximum of 78 people can dine in the first dining room and 54 people in the second. How many chairs can be around one table?
• Girls
  The boys and girls in the class formed without the rest of the fives, 2 girls and 3 boys. There are 6 girls missing to create mixed pairs (1 boy and 1 girl). How many girls are in the classroom?
• Clubhouse
  There were only chairs and table in the clubhouse. Each chair had four legs, and the table was triple. Scouts came to the clubhouse. Everyone sat on their chair, two chairs were left unoccupied, and the number of legs in the room was 101. How many chairs
• Pine's forest
  There were so many pines in the forest that if they were sequentially numbered 1, 2, 3,. .. , would use three times more digits than the pine trees alone. How many pine trees were there in the forest?
• The ratio
  The ratio of girls to boys in Mrs. White's class is 3:2.  If there are 12 boys, how many girls are in the class room?
• Four-member team
  There are 14 girls and 11 boys in the class. How many ways can a four-member team be chosen so that there are exactly two boys in it?
• On the floor
  You enter the room and there are 2 dogs, 4 horses, 1 giraffe and one duck on the bed, 3 chickens are flying over the chair. How many feet are on the floor?
• School parliament
  There are 18 boys and 14 girls in the class. In how many ways can 3 representatives be elected to the school parliament, if these are to be: a) the boys themselves b) one boy and two girls
• Classroom
  In a classroom are 30 students, boys are four times more than girls. How many boys are in the class?
• Boys and girls 2
  The ratio of boys to girls in math club is 4:3 . After 8 more girls joined the Club, the ratio become 1:1. How many members are there in the club now?
• Swallows
  7 swallows 8 tits and 8 sparrows sitting on a wire. How many total flyoff bird sitting on a wire?