Final answer:
To find the number of digital 3-D screens, calculate 33% of 47,000. There were 15,510 digital 3-D screens in the country in 2012.
Step-by-step explanation:
If a country had about 47,000 cinema screens in 2012, and 33% of those screens were digital 3-D screens, the number of digital 3-D screens can be found by calculating 33% of 47,000.
To do this, you convert the percentage into decimal form (33% = 0.33) and multiply it by the total number of screens:
0.33 × 47,000 = 15,510 digital 3-D screens.
Therefore, the country had 15,510 digital 3-D screens.