0
The ratio of the ages A and B is 4: 3. The ratio of their ages eight years from now will be 6: 5. How old was A, when B was 7 years old ?
- A16 years
- B11 years
- C9 years
- D12 years
Answer not set
Log in or create a free account to reply and vote.
0
CCommunity
Solution
Let's say ages of A and B are 4x and 3x
8 years from now their ages will be = 4x+8 and 3x+8
Hence, $\frac{4x+8}{3x+8} = \frac{6}{5}$
So x=4 and age of A = 16 and age of B = 12
So when B will be 7 year old, A will be 11 year old
Let's say ages of A and B are 4x and 3x
8 years from now their ages will be = 4x+8 and 3x+8
Hence, $\frac{4x+8}{3x+8} = \frac{6}{5}$
So x=4 and age of A = 16 and age of B = 12
So when B will be 7 year old, A will be 11 year old
0
CCommunity
Solution
Let's say ages of A and B are 4x and 3x
8 years from now their ages will be = 4x+8 and 3x+8
Hence, $\frac{4x+8}{3x+8} = \frac{6}{5}$
So x=4 and age of A = 16 and age of B = 12
So when B will be 7 year old, A will be 11 year old
Let's say ages of A and B are 4x and 3x
8 years from now their ages will be = 4x+8 and 3x+8
Hence, $\frac{4x+8}{3x+8} = \frac{6}{5}$
So x=4 and age of A = 16 and age of B = 12
So when B will be 7 year old, A will be 11 year old