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Let the incomes of Vineet and Vidya be Rs. 8x and Rs. 5x respectively. According to the question, => 0.70 x 8x + 0.80 x 5x = 19200 => 5.6x + 4x = 19200 => x = 2000 Required difference = 8x – 5x = 3x = Rs.6000
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