If mother's age is three times the sons age and after 4years mothers age is five times then what is the age of mother.
Answers
Let M= present age of mother:
x,y.z be the ages of her children
therefore, according to the question:
M=4(x+y+z)………..(1)
M+6=2[(6+x)+(6+y)+(6+z)]………(2)
solving (1) and (2), eliminating (x+y+z), we get:
M+6=2(18+(M/4))
=>M+6=36+(M/2)
=>M/2=30
=>M=60
Correct Question -
If mother's age is three times the sons age and after 4 years mothers age is two times the age of the son .
Then what is the age of mother ?
Solution -
Let the age of the son be x years .
Now , according to the question , the age of his mother is 3x years .
Now , after 4 years -
The new age of the son becomes => x + 4 years
Age of mother -
The new age of mother becomes 3x + 4 years .
Now , in the above Question , the following situation is given -
Mothers age is two times the age of the son .
So ,
3x + 4 = 2 ( x + 4 )
=> 3x + 4 = 2x + 8
=> 3x - 2x = 4
=> x = 4
=> 3x = 12 years.
Hence the present age of Mother is 12 years .... .... A