Answer:
gggghhhderrhjj
Step-by-step explanation:
gtyyyiiigf
Let the present age of A= 7x years
The present age of B= 5x years
After 10 years, their ages will be
A=7x+10 years and
B=5x+10 years
The ratio of their ages after 10 years is 9:7.
∴
5x+10
7x+10
=
7
9
⇒49x+70=45x+90
⇒49x−45x=90−70
⇒4x=20
⇒x=5
∴ Present age of A= 7×5=35 years and present
age of B= 5×5=25 years.
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Answers & Comments
Answer:
gggghhhderrhjj
Step-by-step explanation:
gtyyyiiigf
Verified answer
Let the present age of A= 7x years
The present age of B= 5x years
After 10 years, their ages will be
A=7x+10 years and
B=5x+10 years
The ratio of their ages after 10 years is 9:7.
∴
5x+10
7x+10
=
7
9
⇒49x+70=45x+90
⇒49x−45x=90−70
⇒4x=20
⇒x=5
∴ Present age of A= 7×5=35 years and present
age of B= 5×5=25 years.
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