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Let the maximum marks of the exam be ‘100x’ Marks scored by Cheenu = 100x × 0.48 = ‘48x’ Marks scored by Meenu = 100x × 0.68 = ‘68x’ According to question: 48x + 72 = 68x – 48 Or, 68x – 48x = 72 + 48 Or, 20x = 120 Or, x = 6 Therefore, maximum marks of the exam = 100x = 100 × 6 = 600 Hence, option e.
306, 272, 240, ?, 182, 156
18, 34, 70, 134, ?, 378
32 33 29 38 ? 47 11
...3.6 × 1.5 + 8.4 × 2.5 – 9.2 × 3.5 = ? – 9.2 × 4.4
14, 20, 29, 44, 65, ?
143 119 107 101 98 ?
23, 27, 39, 59, ?, 123
216, 81, 297, 378, ?, 1035, 1728