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Let the maximum marks of the examination = x So according to question: 0.28x + 42 = 0.41x – 36 0.13x = 78, x = 600 So the passing marks = 600 × 0.28 + 42 = 168 + 42 = 210 Hence, option c.
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