The average of 35 students in a class is 16 years. The average age of 21 student
The average of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age…
The average age of students of a class is 15.8 years. The average age of boys in
The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that…
In an examination a pupil’s average marks were 63 per paper. If he had obtaine
In an examination a pupil’s average marks were 63 per paper. If he had obtained 20 more marks for his Geography paper and 2…
The average salary of all the workers in a workshop is Rs. 8000. The average sal
The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the…