Q: 29 (CAPF/2011)

In a class of 84 students, boys and girls are in the ratio of 5 : 7. Among the girls 7 can speak Hindi and English, 50 per cent of the total students can speak only Hindi, The ratio of the number of students speaking only Hindi to that speaking only English is 21 : 16. The ratio of the number of boys speaking English only to that of girls speaking English only is 3 : 5. How many girls can speak Hindi ?
question_subject: 
Logic/Reasoning
question_year: 
2011
question_exam: 
CAPF
stats: 
0,32,104,56,32,16,32