Question

In a school average age of hs students is 14 yrs and average age of up students is 7 yrs . Average age of the all students is 11 then find a)Ratio of the number of students b)Difference between the hs and up students are what % of the total number of students?

• A. 4 : 3, 14.28%
• B. 4:3, 25%
• C. 5:7, 25%
• D. 5:7, 14.28%

Answer 1

Answer:

A. 4 : 3, 14.28%