Exams › IBPS PO › Quantitative Aptitude
When Rony was born, the ratio of his father's age to his grandfather's age was 7:15. After 4 years, the ratio of Rony's age to his grandfather's age was 1:16. The mother was 22 years old at Rony's birth. Find the ratio of the father's age to the mother's age at Rony's birth.
- 16:11
- 14:11
- 11:14
- 13:11
Correct answer: 14:11
Solution
Let Rony’s age at birth be 0. After 4 years, Rony’s age is 4 and this is 1/16 of the grandfather’s age, so grandfather’s age then is 64 and at birth it was 60. At Rony’s birth, father:grandfather = 7:15, so father’s age = 60 × 7/15 = 28. Mother’s age = 22, hence father:mother = 28:22 = 14:11.
Related IBPS PO Quantitative Aptitude questions
- A and B together have Rs. 1210. If $\frac{3}{5}$ of A's amount is equal to $\frac{2}{3}$ of B's amount, how much amount does B have?
- A sum of money is to be distributed among A, B, C, and D in the proportion $5:2:4:3$. If C gets Rs. 1000 more than D, what is B's share?
- Seats for Mathematics, Physics, and Biology in a school are in the ratio $5:7:8$. There is a proposal to increase these seats by 40%, 50%, and 75% respectively. What will be the ratio of the increased seats?
- If the cost of \(x\) metres of wire is \(d\) rupees, then what is the cost of \(y\) metres of wire at the same rate?
- Students in three hostels are in the ratio 2:3:5. If each hostel has 5 more students than before, the new ratio becomes 5:7:11. What is the total number of students after the increase?
- Total visitors over all four days = 500 + 400 + 800 + 700 = 2400. If one guide is required for every 5 visitors, how many guides are required in total?
⚔️ Practice IBPS PO Quantitative Aptitude free + battle 1v1 →