SSC CGL Tier II Quant 13 Sep 2019 Paper

Question : 13 of 100

Marks: +1, -0

The average age of 120 students in a group is 13.56 years. 35% of the number of students are girls and the rest are boys. If the ratio of the average age of boys and girls is 6 : 5, then what is the average age (in years) of the girls?