6. Five years ago, the ratio of A's age and B's
age was 5 : 6. The ratio of their ages will be
7:8, after five years. What is the ratio of the A's
present age and the B's present age ?
Answers
Answer:
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Step-by-step explanation:
The ages of A and B are in the ratio 5:3. After 6 years their ages will be in the ratio 7:5. What is the present age of A?
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Let x be the common age between A and B
Their ages are 5x and 3x respectively.
After 6 years,
Age of A=5x+6
Age of A after 6 years=7x
According to the question,
5x+6=7x
5x-7x=-6
-2x=-6
x=-6/-2
=3
Thus,
Present age of A
=5x
=5*3
=15
Answer:
The answer is given at the end , check it ^
Step-by-step explanation:
Let A present age is a.
Let B present age is b.
For,
a:b = 5:6
Let the common multiple be c. there fore,
a=5c and b=6c and
A age fine years from now is a+5
B age fine years from now is b+5
hence,
(a+5):(b+5)=6:7
⇒5c+5 / 6c+5 = 6/7
⇒ 35c+35=36c+30
hence the c=5
Therefore ,the present age of A is 25
and B is 30