Question

please solve question

Answer 1

Answer:

2 :

1 - x 100 y 60

2 - x 25 y 80 z 30

3 - x 70 y 40 z 70

4 - x 40

3 : 50

4 : 52 and 78

5 :

1 - 25

2 - 25

3 - 20

4 - 72