Question

The average age of 6 students is 11 years. If two more students of age 14 years each join, then their average age will become?

Answer 1

Hope it helps you in ur studies

Answer 2

Answer:

11.75

Step-by-step explanation:

mean(average) makes use of the formula :

  total sum of items / number of items

in this case there are 6 student and the mean is 11 .. lets create the formula

:   x/6 = 11

x being the sum of the students age...

since 2 more students have been added with there ages given .. we can add there ages to other to the original ages of the 6 students... :

x = 11*6 = 66  ( this is the sum of the origional 6 students)

now lets add it to the new ages of the 2 students:

66+14+14 = 94 ..

now that there are no longer 6 students but 8 ( this is because 2 were added) ... we find the mean by dividing the new sum of the students by 8

94/8 = 11.75

hope this helps