The present age of the brother
is 7 years more then his sister.
if 5 years ago the sum of their ages is 15 years then find out their ages.
Answers
Answered by
1
Answer:
ANSWER
Ratio of present ages of Ramesh and his elder brother =5:7
Let the present ages of Ramesh and his elder brother be 5x and 7x.
After five years,
Age of Ramesh =5x+5 and Age of elder Brother =7x+5
According to question, then the ratio of their ages =3:4
⇒(5x+5):(7x+5)=3:4
⇒
7x+5
5x+5
=
4
3
⇒4×(5x+5)=3×(7x+5)
⇒20x+20=21x+15
⇒21x−20x=20−15
⇒x=5
Thus, Present age of Ramesh =5x=5×5=25years
Present age of his elder brother =7x=7×5=35years.
Answered by
2
To find:-
The present age of Brother and sister.
Assumption:-
Let the present age of sister be (x) years
Present age of Brother = (x + 7) years
Solution:-
5 years ago,
ATQ,
=
Therefore,
Verification:-
5 years ago sum of their ages were 15 years.
5 years ago,
Now,
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