SOLUTION: The average age of 25 boys in a class is 12 years. If three boys aged 13, 14 and 15 and
two boys each of age 16 years are admitted to the class, what will the new average
age of
Algebra.Com
Question 1055437: The average age of 25 boys in a class is 12 years. If three boys aged 13, 14 and 15 and
two boys each of age 16 years are admitted to the class, what will the new average
age of the boys be?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
So then the total of all the ages, T, is,
So then adding the three boys will make this,
So now find the average with the additional 5 boys,
RELATED QUESTIONS
The average age of 30 boys in a class is 15 years. One boy aged 20 years, left the class, (answered by Theo)
The average age of 80 boys in a class is 15. The average age of a group of 15 boys in the (answered by ankor@dixie-net.com)
in a class of 40, there are 10 boys at the age of 12 years 12 at the age of 12.5 years... (answered by RoshanAME)
The average age of 30 boys in a class is 13 years , 9 more boys whose average age is 15... (answered by ankor@dixie-net.com)
The average age of 24 boys and a class teacher is 15 years. if the teacher left the... (answered by josgarithmetic)
there are 30 boys and 60 girls in a class. if the average age of boys is 12 year and... (answered by TimothyLamb)
The average age of boys in a class of 30 is 15 years. If 10 more boys join the class, the (answered by ikleyn,greenestamps)
A class consists of equal numbers of boys and girls. Two-fifths of the class are 13 years
(answered by Boreal,MathTherapy)
The average age of all the students of a class is 18.0 years. The average age of boys of... (answered by Fombitz)