Question
In how many different ways can the letters of the word
“DISCHARGE” be arranged in such a way that the vowels always come together?Solution
The arrangement is made in such a way that the vowels always come together i.e., DSCHRG(IAE) Considering Vowels as one letter, 7 different letters can be arranged in 7! Ways = 5040 The Vowels “IAE” can be arranged themselves in 3! Ways = 6 Therefore, required number of ways = 5040 × 6 = 30240
What will come in place of the question mark (?) in the following series?
1528, 1416, 1204, ?, 480, -32
143 Â Â Â Â 119Â Â Â Â 107Â Â Â Â 101Â Â Â Â Â 98Â Â Â Â ?
96 89 ? 90 94 91
...What value should come in the place of (?) in the following number series?
19, 235, 260, 324, 333, ?
What will come in place of the question mark (?) in the following series?
305...
In each of the following number series, one term is missing. Find the missing term.
3, 5, 20, 24, 144, 150, ?
1029, 1030, 1039, 1064, ?, 1194
75, 80, 95, ?, 155, 200
What will come in place of the question mark (?) in the following series?
1515, 184, ?, 455, 967, 624
7 29 61 ? 211 349
...
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