Select the correct answerIn a certain school, there are 60 boys of age 12 each, 40 of age 13 each, 50 of age 14 each and 50 of age 15 each. What is the average age of all the boys of the school?Options13.513.45None of these1413.1

Select the correct answerIn 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 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

Select the correct answerIn a class of 100 students, there are 70 boys whose average marks in a subject are 75. If the average marks of the complete class is 72, then what is the average marks of the girls?Options64687465

The average age of 24 boys and the teacher is 15 years. When the teacher’s age is excluded, the average decreases by 1. What is the age of the teacher?Options :38 years39 years40 yearsData inadequat

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