The ratio of girls to boys in a class is 7:8, respectively. All the students study 3 different languages, Hindi, English and Marathi. 30% of the boys study only English. 400 girls study only English and Hindi I.e. 2/7th of the total number of girls. 1/8th of the boys study only English and Marathi. Number of girls studying only English is 85% of the boys studying the same. 2/5th of the boys study only Hindi and Marathi. The number of boys studying only English and Hindi Is 10% of the girls studying the same. The remaining boys study only Hindi. 40% of the girls study only Hindi. The remaining girls study only Hindi and Marathi.