Five years ago the average age of a family of 3 members was 27 years A child has Been born

Five years ago the average age of a family of 3 members was 27 years.
Present average age of a family of 3 members is 32 years.
sum of Ages of 3 members = 3*32= 96 years.
average age of the family of four persons is 25 years today.
Total age of the family of four persons is 25*4=100 years today.

age of child = 100-96= 4 years.
12 years agoHelpfull: Yes(1) No(0)
cuureent age of 3 members in family=(27+5)*3=96
after the child birtth age=4*25=100
hence child age=100-96----->4
11 years agoHelpfull: Yes(1) No(0)
five years ago;
total age of 3 members= 3*27=81
five years later;
total age of 3 members= 81+(3*5)=96
child was also born, let present age her age be x;
then;
96+x=4*25
x=4
so; present age of child=4 yrs.
4 years agoHelpfull: Yes(0) No(0)
Five years ago the average age of the family of consisting of3 members is 27 years.

total = 27*3=81

now= 81 + 3*5=96

again 25*4=100

therefore, 100-96 = 4 ans.
3 years agoHelpfull: Yes(0) No(0)
let the sum of age of 3 members be x
given:average age before 5 years=27
x/3=27
x=27*3=81
let the age of new born be n
now average=25
(x+15+n)/4=25 (after 5 years age of each person will be increased by 5 so 5*3)
x+15+n=25*4
81+15+n=100
n=4
the age of child is 4
3 years agoHelpfull: Yes(0) No(0)

Five years ago the average age of a family of 3 members was 27 years. A child has Been born, due to which the average age of the family is 25 years today. What is the Present age of the child?