SSC GD Constable previous year question
The present age ratio of the mother to the daughter is 7 : 2. After 12 years, their ages will be in the ratio of 9 : 4. What is the current age of the mother?
Asked in SSC GD Constable 2025: 12 Feb 2025 Shift 1 · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (C) 42 years
Let ages be 7x and 2x; (7x+12)/(2x+12) = 9/4 ⟹ 28x+48 = 18x+108 ⟹ 10x = 60 ⟹ x = 6; mother's age = 7×6 = 42 years.
हिंदी में प्रश्न
माँ और बेटी की वर्तमान आयु का अनुपात 7 : 2 है। 12 वर्ष बाद, उनकी आयु का अनुपात 9 : 4 हो जाएगा। माँ की वर्तमान आयु क्या है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 42 वर्ष
आयु को 7x और 2x मानें; (7x+12)/(2x+12) = 9/4 ⟹ 28x+48 = 18x+108 ⟹ 10x = 60 ⟹ x = 6; माँ की आयु = 7×6 = 42 वर्ष।
More solved Quantitative Aptitude questions
- The simple interest on a principal amount (in ₹) is ₹531 for a period of 5 years at the rate of 9% per annum. The principal amount (in ₹)…
- The height of a right circular cone is 10 cm and its base radius is 24 cm. What is the curved surface area (in cm²) of the cone?
- The population of a town increases by 8% annually. If the present population is 45,000, what will be its population after 2 years?
- The marked price of a table is ₹8,980. If the shopkeeper offers a discount of 19%, what is its selling price (in ₹, to the nearest rupee)?
- 400 guavas were bought at ₹1240 per hundred and were sold at a profit of ₹940. Find the selling price (in ₹) per dozen of guavas.
- Find the value of the following. [(27 × 5) × {3 ÷ 3 × (15 − 13)/2}]