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According to the question: Let the monthly income of C = Rs. 9y Monthly income of D = Rs. 14y According to the question, (9y – 1500):(14y – 3500) = 6:9 9(9y – 1500) = 6(14y – 3500) 81y – 13500 = 84y – 21000 21000 – 13500 = 84y – 81y 7500 = 3y y = 2500 Difference between their incomes = 14y – 9y = 5y = 5 × 2500 = Rs.12500
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Match the Column I with Column II and select the correct answer using the codes given below:
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A circular plate, a cube and a sphere, all made up of same material and having the same mass, are heated to 300°C and left in a room. Which of them wil...
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