two products A and B. Each unit of A requires 3 labor hours and each unit of B requires 5 labor hours. Daily manufacturing capacity is?

(a)
3x + 5y = 150


(b)
When y = 25 :
3x + 5*25 = 150
3x = 25
x = 8 and 1/3

Hence, 8 and 1/3 units of A are manufactured each day.


(c)
When y = 12 :
3x + 5*12 = 150
3x = 90
x = 30

Hence, number of units of A manufactured each weak = 30 × 5 = 150