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Let the length and breadth of the rectangle be 3x cm and 5x cm, respectively. According to the question, 3x + 5x = 32 Or, x = 32/8 = 4 Therefore, area of the rectangle = 3x × 5x = 15x2 = 240 cm2
5, 5, 15, 75, ?, 4725
8, 24, 48, 80, ?, 168
8 13 36 123 ? 2585
250, 279, 311, 349, 396, ?
840, 2520, 630, 3150, ?, 3675
12, 24, 46, 78, 120, ?
81, 41, 42, 64.5, ?, 330
8, 58, 75, 94, 115, ?
200 ? 96 38.4 7.68 0