The average age of boys in class is 16.66, while the average age of girls is 18.75. Thus the average age of all the 40 students of the class is 17.5. If the difference between the no. of boys and girls is 8, then the no. of girls in the class is: Options : 12 16 18 Data insufficient

The average age of 24 boys in a class is 16. If the teacher is included and one boy is excluded from the group, the average increases by one. The age of the teacher is: OptionsData insufficient525150

The average age of all the boys in a certain class is 15.4 years, while that of girls in the same class is 14.4 years. If the average age of all the students in the class is 14.8 years, what is the ratio of boys to girls in the class?6 Mark For ReviewA) 1:3B) 1:2C) 2:3D) 2:1

In a class there are 32 boys and 28 girls. The average age of the boys in the class is 14 years and the average age of the girls in the class is 13 years. What is the average age of the whole class?Options13.512.5113.4213.53

The average age of 35 students of a class is 23 years. When 10 new students are admitted, the average is decreased by 0.5 years. The average age of new students is:Options20.2520.520.7520

The average age of 30 students of a class is 22 years. The average age of a group of 6 of the students is 12 years and that of another group of 8 of them is 18 years. What is the average age of the remaining students? Options :384342412