Question

Agar 4 logon ki average age 14 ho, aur paanchve vyakti ke aane se average age 17 ho jaye, to paanchve vyakti ki umra kya hogi ?​

Answer 1

Answer:

answer is 29.

Step-by-step explanation:

let the persons be x1 ,x2,x3,x4

then, average =(x1+x2+x3+x4)/4

14=(x1 +x2 +x3+x4)/4

14*4 =X1+x2+x3+x4

56=X1+x2+x3+x4.............(I)

given, (X1 +x2+x3+ x4+x5)/5=17

X1+x2+x3+x4+x5=85

from (I)

56+x5=85

x5=29

age of fifth person will be 29 years.