Exercices 41 and 42

 41.- Think you want to print out a photograph with a size of DIN A4: 210 × 297 mm maintaining a printing quality of 200 dpi. Which resolution would the image need?

Is  enough with 1654x2338 pixels

42.- Which resolution would the same picture need to have a 300 dpi picture?

This means if an image is 10 inches in width by 10 inches in height at 300 DPI, your pixel dimensions need to be 3000px x 3000px. In other words, you need to multiply the print size by 300 to find the right pixel dimensions (e.g. 3000px x 3000px) to provide 300 DPI.