# Boys and girls

There are 28 girls in the hall. 5/7 of all children are boys. How many children and how many boys are there?

Correct result:

c =  70
s =  98

#### Solution:

c+28 = s
5/7 s = c

c+28 = s
5/7•s = c

c-s = -28
7c-5s = 0

c = 70
s = 98

Our linear equations calculator calculates it. We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you! Tips to related online calculators
Need help calculate sum, simplify or multiply fractions? Try our fraction calculator.
Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

## Next similar math problems:

• Simple equation Solve for x: 3(x + 2) = x - 18
• Unknown number I think the number - its sixth is 3 smaller than its third.
• UN 1 If we add to an unknown number his quarter, we get 210. Identify unknown number.
• One third If 3/5 is 360, how much is 1/3?
• Unknown number 6 Determine the unknown number, which is by 1.5 greater than its fourth.
• Given Given 2x =0.125 find the value of x
• New bridge Thanks to the new bridge, the road between A and B has been cut to one third and is now 10km long. How much did the road between A and B measure before?
• Equation with x Solve the following equation: 2x- (8x + 1) - (x + 2) / 5 = 9
• Eqn Solve equation with fractions: 2x/3-50=40+x/4
• Eq-frac Solve the following equation with fractions: h + 1/3 =5/3
• Fractions Three-quarters of an unknown number are 4/5. What is 5/6 of this unknown number?
• Fraction + eq Solve following simple equation with fractions: -5/6(8+5b) = 75 + 5/3b
• Fruits Amy bought a basket of fruits 1/5 of them were apples,1/4 were oranges, and the rest were 33 bananas. How many fruits did she buy in all?
• Pears There were pears in the basket, I took two-fifths of them, and left six in the basket. How many pears did I take?
• The buns Kate, Zofia and Peter Liked buns. Even today, their grandmother prepare their favorite meal. Katka eats 4 bunches, Žofia 3 and Petra eats 5 buns. Their grandmother said to them, "My inmate will you know how many buns I have been make today, if those you e
• Simple equation 3 24 = n • 27, solve for n
• Orchard 3/5 of the trees in the orchard are apples, 1/3 are cherries and the remaining five trees are pear. How many trees are in the orchard?