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

X + x + 165 = 1315
2x + 165 = 1315
subtract 165 from both sides
2x = 1150
divide both sides by 2
x = 575
January 575
February 575 + 165 = 740