Given
The 300 students at Holmes school work a total of 5000 hour each month.
Each student in group A work 10 hours, each in group B work 15 hours and each in group C work 20 hours each month.
There are twice as many students in group B as in group A.
To find: Which equation would not include in system used to solve this problem?
Explanation:
It is given that,
The number of students in the Holmes school is 300.
And, the number of students is divided into 3 groups A, B and C respectively.
That implies,
[tex]A+B+C=300[/tex]
Also, the total number of working hours is 5000.
Each student in group A work 10 hours.
Each student in group B work 15 hours.
Each student in group C work 20 hours.
That implies,
[tex]10A+15B+20C=5000[/tex]
There are twice as many students in group B as in group A.
That implies,
[tex]B=2A[/tex]
Hence, the equation A=2B would not include in system used to solve this problem.
