Ten years ago, the age of mother was three times the age of her son. After ten years, mother’s age will be twice that of his son. Find the ratio of their present ages. ?
Answers
10 years ago, age of mother was three times the age of her son. Say, the age of son was x and mother's age was 3x.
At present: Mother's age is (3x + 10) and son’s age is (x + 10)
After ten years: Mother's age will be (3x + 10) +10 and son’s age will be (x + 10) + 10. Given that, mother’s age is twice that of son after ten years.
(3x + 10) +10 = 2 [(x + 10) + 10]
(3x + 20) = 2[x + 20]
Solving the equation, we get x = 20
(3x + 10): (x + 10) = 70: 30 = 7: 3.
Answer:
hiiiii
your answer is here !
Step-by-step explanation:
=> 10 years ago,
age of mother was three times the age of her son.
Say, the age of son was x and mother's age was 3x.
At present :-
Mother's age is (3x + 10)
and
son’s age is (x + 10)
After ten years :-
Mother's age will be (3x + 10) +10
and
son’s age will be (x + 10) + 10.
Given that,
mother’s age is twice that of son after ten years.
=> (3x + 10) +10 = 2 [(x + 10) + 10]
=> (3x + 20) = 2[x + 20]
Solving the equation,
we get x = 20
(3x + 10): (x + 10) = 70: 30 = 7: 3.
follow me. !