Paper collection classes

Three 9th-grade classes participated in the paper collection competition. The company bought 1 kilogram of paper for €0.12, and the school received €174 thanks to their hard work. Calculate how many kg of paper 9 A collected if you know that she collected twice as much as 9B, and 9 C had 50 kg less than 9B.

Final Answer:

a =  750 kg

Step-by-step explanation:

p=0.12 eur/kg z=174 eur  z=p m m=z/p=174/0.12=1450 kg  a+b+c=m a=2 b c=b50 a+b+c=1450 a=2 b c=b50  a+b+c=1450 a2b=0 bc=50  Row2Row1Row2 3bc=1450  Row331 Row2Row3 1.333c=433.333  c=1.33333333433.33333333=325 b=31450+c=31450+325=375 a=1450bc=1450375325=750  a=750 b=375 c=325



Help us improve! If you spot a mistake, please let let us know. Thank you!







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

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

algebraUnits of physical quantitiesGrade of the word problem

Related math problems and questions: