Question : Six years ago, the ratio of ages of A to B was 7 : 5. 4 years from now, the ratio of their ages will be 11 : 9. What is A’s age at present?
Option 1: $24 \frac{1}{2}$ years
Option 2: $22 \frac{1}{2}$ years
Option 3: $23 \frac{1}{2}$ years
Option 4: $21 \frac{1}{2}$ years
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: $23 \frac{1}{2}$ years
Solution : Six years ago, the ratio of ages of A to B was 7 : 5. Six years ago the ages of A and B were $7x$ and $5x$ respectively. 4 years from now, the ratio of their ages will be 11 : 9. So, according to the question, $\frac{7x+10}{5x+10}=\frac{11}{9}$ $⇒ 63x+90=55x+110$ $⇒8x=20$ $\therefore x = 2.5$ So A's present age = $7×2.5+6=23.5=23\frac{1}{2}$ years Hence, the correct answer is $23\frac{1}{2}$ years.
Candidates can download this ebook to know all about SSC CGL.
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Question : The ratio of the present ages of R and S is 11 : 17. 11 years ago, the ratio of their ages was 11 : 20. What is R's present age (in years)?
Question : The ratio of the present ages of Ram and Ramesh is 3 : 5. After 7 years the ratio of their ages will be 4 : 5. Find the present age of Ramesh.
Question : The average age of a man and his son is 55 years. The ratio of their ages is 7 : 4, respectively. What will be the ratio of their ages after 6 years?
Question : The ratio of the present ages of the two boys is $3:4$. After 3 years, the ratio of their ages will be $4:5$. The ratio of their ages after 21 years will be:
Question : The ratio of the present age of the father to that of his son is 7 : 2. If after 10 years the ratio of their ages becomes 9 : 4, then the present age of the father is:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile