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Raj is 50 years old and Neha is 25 years old. Then find in how many years after their ratio is 6 ∶ 5?1. 40 years 2. 70 years3. 100 years4. 80 years |
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Answer» Correct Answer - Option 3 : 100 years Given: Raj’s age = 50 years Neha’s age = 25 years Calculations: Let after x years Raj’s age and Neha’s be 50 + x, 25 + x According to the question, ⇒ (50 + x)/(25 + x) = 6/5 ⇒ (250 + 5x) = (150 + 6x) ⇒ x = 100 ∴ After 100 years the ratio of Raj and Neha’s age become 6 ∶ 5 |
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