The ratio of the present ages of two persons A and B is 4:3. If 4 years ago, the ratio of their ages was 2:1, what is the present age of A and B (in years) respectively?दो व्यक्तियों A और B की वर्तमान आयु का अनुपात 4:3 है। यदि 4 वर्ष पूर्व, उनकी आयु का अनुपात 2:1 था, तो A और B की वर्तमान आयु (वर्षों में) क्या है?
Pick an option to check yourself, or open the answer below.
Show answer & explanation
Correct answer: A. 8, 6
Explanation
Let ages be 4x and 3x. (4x − 4)/(3x − 4) = 2 → 4x − 4 = 6x − 8 → x = 2. Ages = 8 and 6. Check: 4 years ago 4 and 2, ratio 2:1.मान लीजिए आयु 4x और 3x है। (4x − 4)/(3x − 4) = 2 → 4x − 4 = 6x − 8 → x = 2। आयु = 8 और 6। जाँच: 4 वर्ष पूर्व 4 और 2, अनुपात 2:1।More Mathematical Reasoning and Aptitude questions
- Find the average of squares of consecutive even numbers from 1 to 20?
- 40 people consume 320 kg of rice in 50 days. In how many days will 30 people consume 80 kg of rice?
- If the selling price of Rs. 623 results in a discount of 11% on the market price of an item, at what price should the item be sold to offer…
- Find the next number in the number series: 48, 24, 72, 36, 108, ?
- In a certain coding language, the word 'GREAT' is coded as 'ETCCR', then the word 'FROWN' will be coded as:
- Travelling in a train, a man notices 13 telephone poles in two minutes. If two successive telephone poles are known to be 125 m apart, then…