Suppose that there are twice as many people who study calligraphy as those who study painting, and the total number is 200 plus 40, then there are twice as many people who study painting, and 240 is three times as many people who study painting. Then if 240 is divided by 3, 80 people will learn to draw. 200 MINUS 80 is the person who studies calligraphy. That is 120 to learn calligraphy.