The average age of 5 students is taken today, it is 14 years. How much
it will be if taken after 5 years?
140
Answers
19
Step-by-step explanation:
Average = total age of 5 students/no. of students
Total age of 5 students at present
Average = total age of 5 students/no. of students
=> 14 = total age / 5
=> 14*5 = total age
=> 70 = total age of 5 students at present
Total age of 5 students after 5 years
Total age at present + 25 ( each students increase by 5 years )
=> 70 + 25
=> 95
Average age of 5 students after 5 years
Average = total age of 5 students/no. of students
Average = 95 / 5
Average = 19
Hanec, if all the members (students) in the group increase or decrease by same no. of elements ( years in this case ) then the average Will be increase or decrease by same
In this case the age of all the students increase by same no. of years that is 5 years. Hence the average age also increase by 5years.
Present it is 14 + 5 = 19 ( after 5 years )