Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 10)
10.
Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin?
Answer: Option
Explanation:
Let Rahul's age be x years.
Then, Sachin's age = (x - 7) years.
 |
x - 7 | = | 7 |
| x | 9 |
9x - 63 = 7x
2x = 63
x = 31.5
Hence, Sachin's age =(x - 7) = 24.5 years.
Discussion:
51 comments Page 6 of 6.
Riya said:
1 month ago
Let's assume Sachin's age is = x.
Let the age of Rahul be = x + 7.
Their respective ages in the ratio 7 : 9.
x/x+7 = 7/9.
By solving the above equation, we get x = 24.5.
where the age of Sachin is 24.5.
Let the age of Rahul be = x + 7.
Their respective ages in the ratio 7 : 9.
x/x+7 = 7/9.
By solving the above equation, we get x = 24.5.
where the age of Sachin is 24.5.
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