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Total weight of all the students in the class, initially = 20 X 27 = 540 kg New total weight of the class = 540 - (19 + 47) + 77 = 551 kg So, new average weight of each student in the class = 551 ÷ 19 = 29 kg
124, 180, 108, 198, ?, 220
1236, 1445, 1675, 1933, 2226, ?
78, 80, 84, ?, 108, 140
4, 4, 12, 60, ?, 3780
What will come in place of (?) question mark in the given number series.
960, 960, 480, ?, 40, 8
86, 127, ?, 209, 250, 291
244, 179, 129, 92, 66, ?
?, 32, 75, 144, 245, 384
81 72 136 111 ? 278
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