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There are 4 possible cases The required number of ways = (4C3 × 4C3) + (3C1 × 4C2) × (4C2 × 3C1) + (3C2 × 4C1) × (4C1 × 3C2) + (3C3 × 3C3) = (4 × 4) + (3 × 6 × 6 × 3) + (3 × 4× 4 × 3) + (1 × 1) = 16 + 324 + 144 +1 = 485 ways.
35, 36, 40, 49 , 65 , ?
18, 25, 33, 42, 52, 63, ?
?, 8, 32, 72, 128, 200
1, 27, ?, 343, 729, 1331
Find the wrong number in the given series.
12, 18, 27, 42, 62, 87
299, 302, 308, 317, ?, 344
112 162 199 ? 242 252
...86 36 ? 7 7.5 0.75
If 2, 7, 20, x , 110, 235,
Then, 7 x + 7√x = ?