Directions∶ The following Paragraph contains the information of some college students. On the basis of this information, answer the following questions.

In a college there are 3200 students studying Physics and Math. Each student from each course knows one or more languages out of English, Hindi and Bengali. 55% of the students study Math and the remaining students study Physics. Out of the students studying Physics, boys and girls are in the ratio 5 ∶ 3.

Out of the boys studying Physics, 16% know only English, 10% know only Hindi and 4% know only Bengali. 24% know English as well as Hindi, 20% know English as well as Bengali and 14% know Hindi as well as Bengali. The remaining boys know all the three languages.

Out of the girls studying Physics, 20% know only English, 10% know only Hindi and 10% know only Bengali. 20% know English as well as Hindi, 20% know English as well as Bengali and 10% know Hindi as well as Bengali. The remaining girls know all the three languages.

Out of the students studying Math, boys and girls are in the ratio 4∶7. Out of the boys studying Math, 20% know only English, 15% know only Hindi and 5% know only Bengali. 15% know English as well as Hindi, 25% know English as well as Bengali and 10% know Hindi as well as Bengali. The remaining boys know all the three languages.

Out of the girls studying Math, 15% know only English, 15% know only Hindi and 5% know only Bengali. 20% know English as well as Hindi, 20% know English as well as Bengali and 15% know Hindi as well as Bengali. The remaining girls know all the three languages.