Question

There are 25 students in a class and the average of their ages is 15 years.the average age of the first 12 steudents is 14 and the average age of thelast 12 student is16.if the ageof ajay is 5 years more than the age of 13th students find the age of ajay how to solve

Answer 1

Answer:

20

Step-by-step explanation:

total of age = 25 × 15 = 375

total age of 1st 12 students = 14 × 12 = 168

total age of the last 12 students = 12 × 16 = 192

age of 13th student is 375-(192 + 168) = 15

therefore ajay age is 15 + 5 = 20

check the answer as well = (192 + 168 + 15 )/25

192+168 is of 24 students ans 15 is of that 13th student

Answer 2

Answer:

Step-by-step explanation: