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Let total students in class = 100x Boys = 60x Girls = 40x passed boys = 40% of 60x = 24x passed girls = 50% of 40x = 20x total passed students = 20x+24x = 44x total failed students = 100x – 44x = 56x failed percentage of total students = 56x/100x × 100 = 56%
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