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Question

Technical improvement of a factory enabled it to produce 165 parts more in February than in January. In the two-month period, the factory produced 1315 parts altogether. How many parts were produced in January and how many parts were produced in February?

Answer 1

Let's say it produced x parts in January. Then, the factory produced x + 165 units in February. Our equation is

 

x + (x + 165) = 1315

2x + 165 = 1315

2x = 1150

x = 575

 

575 parts were produced in Jan. and 740 were produced in Feb.