Math, asked by kawal105, 3 months ago

Average age of a college student is 16.5 years when 10 new students came whose average age 13.4 years then average become 16years. Find the number of students

Answers

Answered by amitsharma777222999
0

Answer:

let the number of students be x

total age of x student =16.5x

10 student average age is 13.4

sum of their age =13.4*10=134

now total student =x+10

total age become 16.5x+134

16.5x+134/x+10=16

16.5x+134=16x+160

.5x=26

x=260/5=52

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