Question

When rajesh was born, his father age was 29 years older than his brother and his mother was 25 years older than his sister. If his brother is 2 years elder than his sister. After 6 years the average age of the family is 20. Then what is the age of mother when rajesh was born?

Answer 1

Answer:

Step-by-step explanation:

Family contains

Rajesh age 0 when born

Brother age x

Sister age y

Father age x+29

Mother is 25+y

After 6 years

(x+6+y+6+6+x+29+6+y+25+6)/5=20

2(x+y)/5=20-18

x+y=5

Also x=y+2

So y=1.5

And thus age of mother when rajesh was born =1.5+25=26.5

Answer 2

Answer:

28

Step-by-step explanation:

total members in family is 5

rajesh = 0

sister = x

brother = x+2

father = 29+x+2

mother = 25+x

family = x+x+2+29+x+2+25+x  = 4x+58

after 6 years

6*5= 30   ( 5 members)

4x+58+30 = 4x+88

average of family is 20

so 20*5= 100

4x+88 = 100

x= 3

mother = 25 + x = 28