Mr. A and Mr. B have a combined salary of Taka 1,000. If salary of A is increased by 2.5 times and salary of B is increased by 1.5 times, the combined salary would be Taka 1600. What was the original salary of B?

Mr. A and Mr. B have a combined salary of Taka 1,000. If salary of A is increased by 2.5 times and salary of B is increased by 1.5 times, the combined salary would be Taka 1600. What was the original salary of B? Correct Answer Taka 900

ধরি, A এর salary x টাকা B এর. salary y টাকা x + y = 1000.......(1) এবং, 2.5x + 1.5y = 1600........(2) (1) × 1.5 - (2) ×1 1.5x + 1.5y = 1500 2.5x + 1.5y = 1600 - x = - 100 x = 100 y = 1000 - 100 = 900
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