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Let the length and breadth of the rectangle be 5x cm and 4x cm, respectively According to the question, 2 × (5x + 4x) = 270 Or, x = 135/9 = 15 Therefore, each side of the square = 1.25 × 4x = 75 cm Perimeter of the square = 4 × 75 = 300 cm Required difference = 300 – 270 = 30 cm
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Which of the folloiwng is program group?
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_____________ viruses are embedded in a system's memory so it can be reactivated if the original virus is deleted.
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