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Let the marks obtained by B be ‘x’. So, marks obtained by A = 1.25x According to question, (1.25x – x) + 150 = 180 0.25x = 180 – 150 0.25x = 30 x = 30/0.25 x = 120 Therefore, marks obtained by A = 1.25 × 120 = 150 marks
18, 37, 60, ?, 120, 157
17, 9, ?, 13.5, 25, 65
7 47 ? 223 359 527
...204, 401, 640, ?, 1105, 1406
101, 103, 107, 109, 113, ?
11 20 ? 64 112 192
...18, 54, 162, ?, 1458, 4374
415 246 367 ? 335 310
...What will come in the place of questions (?) mark in the following questions.
53, 55, 61, 71, 85, ?
32, 64, 144, ?, 990, 2970