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The monthly salaries of A and B are in the ratio 11 : 21. If both of them get a salary increment of Rs. 4000 per month, the new ratio becomes 3 : 5. What is the new monthly salary of A?1). Rs. 110002). Rs. 150003). Rs. 25004). Rs. 22000 |
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Answer» Let the monthly salaries of A and B be 11x and 21X. According to the condition, ⇒ [(11x + 4000)/(21x + 4000)] = 3/5 ⇒ 55x + 20000 = 63x + 12000 ⇒ 63x - 55x = 20000 - 12000 ⇒ 8x = 8000 ⇒ X = 8000/8 = 1000 ∴ NEW monthly salary of A = 11 × 1000 + 4000 = Rs. 15,000 |
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