Question
Find the number of ways to arrange each letter of the
word 'EDUCATIONAL' such that all the vowels always come together.Solution
Number of letters = 11
Take all the vowels (EUIOAA) as one entity.
Number of letters now = 5 + 1 = 6!
Number of ways to arrange all the letters = 6! = 720
Number of ways to arrange vowels = 6! ÷ 2! = 720 ÷ 2 = 360
Required number of ways = 720 × 360 = 2,59,200
Find the wrong number in the series given below.
7, 22, 68, 217, 625, 1880
Select the number from among the given options that is wrong in the following series.
22, 30, 46, 78, 146, 270
Find the wrong number in the given series.
60, 65, 75, 95, 125, 195, 355Â Â
Arrange the following words in a logical and meaningful order.
1. Monkey
2. Elephant
3. Rat
4. Fly
5. Lion
Find the wrong number in the given series.
17, 17, 51, 255, 1789, 16065
A series is given with two wrong terms. Select the wrong term in the given series.
32, 43, 58, 73, 92, 117, 144
A series is given with one wrong term. Select the correct alternative from the given ones that will complete the series.
33, 44, 66, 110, 199, 374
Select the wrong term in the series.
44, 47, 41, 50, 38, 53, 40
5, 15, 30, 135, 405, 1215, 3645
Find the wrong number in the series given below.
5, 16, 50, 157, 463, 1394
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