1.

In a college, the ratio of boys and girls is 5 : 3 and the ratio of girls and teachers is 7 : 1. What is the ratio of students and teachers?1). 57 : 32). 54 : 13). 26 : 14). 56 : 3

Answer»

The RATIO of boys and girls is 5 : 3

NUMBER of girls = (3/8) × number of students

The ratio of girls and teachers is 7 : 1

Number of girls/ Number of teachers = 7/1

[(3/8) × Number of students]/Number of teachers = 7/1

Number of students/Number of teachers = 56/3

∴ The ratio of students and teachers 56 ? 3



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