Question

The cost of producing a ratio component is partly a constant and partly varies inversely with the number of component produced in a day.If 100 components are produced per day.The cost is 600 per component. If 200 components are produced per day.The cost is reduced to 4.50 per component

Answer 1

assume you mean 6.00 per component
c = a + b/n
6.00 = a + b/100
4.50 = a + b/200
--------------------- subtract
1.50= 2 b/200 - b/200 = b / 200
b = 200 * 1.50 = 300
6 = a + 3
a = 3
so
c = 3 + 300/n