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In the word “INCORPORATION”, we treat the vowels IOOAIO as one letter Thus, we have, NCRPRTN (IOOAIO) This has 8(7+1) letters of which R and N occurs 2 times and the rest are different Number of ways arranging these letters = 8!/(2! ×2!) = 10080 Now, 6 vowels in which O occurs 3 times and I occurs 2 times, can be arranged in 6!/(3! ×2!) = 60 ∴ Required number of ways = 10080 × 60 = 604800
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 = ?