Pupils

Two classes to collect money. Boys are four sevenths pupils. In time did not pay a quarter of the boys and a sixth of girls, which together mean 12 sinners. How many pupils attend this two classes ?

Result

x =  56

Solution:

4/7*1/4*x + (1-4/7)*1/6* x = 12

18x = 1008

x = 56

Calculated by our simple equation calculator.

Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! To solve this verbal math problem are needed these knowledge from mathematics:

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:

1. Lengths of the pool Miguel swam 6 lengths of the pool. Mat swam 3 times as far as Miguel. Lionel swam 1/3 as far as Miguel. How many lengths did mat swim?
2. Flood water Flood waters in some US village meant that the homes had to evacuate 364 people. 50 of them stayed at elementary schools, 59 them slept with their friends and others went to relatives. How many people have gone to relatives?
3. Equation 20 In given equation: 8/9-4/5=2/9+x, find x
4. Adding mixed numbers Add this two mixed numbers: 1 5/6 + 2 2/11=
5. Cakes 1/3 poppy cake, 1/3 apple, 15 pieces of cheese. How many are totally cakes?
6. Forest nursery In the forest nursery after winter, they found that 1/10 stems died out of them. For them, they land 193 new spruces. How many spruces are in the forest nursery?
7. I think number I think number.When I add 841 to it and subtract 157, I get a number that is 22 greater than 996. What number I thinking?
8. Simple equation 5 Solve equation with fractions: X × 3/8 = 1/2
9. Six te 2 If 3t-7=5t, then 6t=
10. Eq1 Solve equation: 4(a-3)=3(2a-5)
11. Mixed2improper Write the mixed number as an improper fraction. 166 2/3
12. In fractions An ant climbs 2/5 of the pole on the first hour and climbs 1/4 of the pole on the next hour. What part of the pole does the ant climb in two hours?
13. Drive At the bus stop 8 people take out and 10 people take into bus. Next stop 6 take out and 5 take in. On the third stop 6 take out and 3 take in. The bus traveled further with 39 people. How many passengers were originally at the bus?
14. If-then equation If 5x - 17 = -x + 7, then x =
15. Jam cakes Mom baked a third of plum jam cakes, one third cheesecakes and 18 poppy. How many cakes she had bake?
16. Zdeněk Zdeněk picked up 15 l of water from a 100-liter full-water barrel. Write a fraction of what part of Zdeněk's water he picked.
17. Roman numerals 2+ Add up the number writtens in Roman numerals. Write the results as a roman numbers.