Five years ago, a mother was seven times as old as her daughter. Five years
hence, she will be three times as old as her daughter. Find their present ages.
Answers
Answer:
Let the age of Daughter be x
And Age of Mother be y
Now according to question
Casr 1*= y-5= 7(x-5)
= y-5=7x-35
7x - y - 30 =0 ...... 1
Case 2*= y+5= 3(x+5)
= y+5=3x + 15
= 3x-y +10 = 0 ...... 2
Subtract both equations. We get
= 4x = 40
= x= 10 years
Now put x =10 , we get
= 7(10) - y - 30 = 0
= 70 - y = 30
= - y = - 40
= y =40*
So Daughter's present age is 10 years
And Mothers present age is 40 years
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Answer:
let the daughters age be x
hence mothers age= 7x
after 5 years
daughters age =x+5
mothers age = 7x+5
therefore according to the question
7x+5=3(x+5)
7x+5=3x+15
7x-3x = 15-5
4x= 10
x = 10/4
x= 2.5
daughters present age= 2.5
mothers present age = 11.5
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