Question

20 years ago when my parents got married their average age was 23 years now the average age of my family consisting of myself and my parents only is 35     my present age is? 
 please explain answer

Answer 1

Hi ,

i ) At present
__________

Father's age = x years

Mother's age = y years

Son's age = z years

ii ) 20 years back
____________

Father's age = ( x - 20 ) years

Mother's age = ( y - 20 ) years

Average of their ages = 23 ( given )

( x - 20 + y - 20)/ 2 = 23

x + y - 40 = 46

x + y = 46 + 40

x + y = 86 --------------( 1 )

At present average of family = 35 ( given )

( x + y + z )/ 3 = 35

x + y + z = 105

86 + z = 105

z = 105 - 86

z = 19

Therefore

At present son's age = z = 19 years

I hope this will usful to you

*****

Answer 2

Answer: 19

Step-by-step explanation: the age of daughter in 19