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Explanations

1. Two series alternate here, with every third number following a different pattern.

In the main series, 4 is added to each number to arrive the next.

In alternate series, 5 is subtracted from each number t arrive the next number.

Here in the main series

3 + 4 = 7

7 + 4 = 11

11 + 4 = 15

15 + 4 = 19

In alternate series

24 - 5 = 19

19 - 5 = 14...

 

2. Here it can be seen that it is not a continuous series.

so take alternative terms.

CGE, FJH, IMK and RNP, OKM,__

Between R and O there is a gap of two letters. so the first letter in the answer is L.Proceding like this the answer is LHJ

 

3. ten = 3(number of letters)

nine = 4(number of letters)

sixty = 5(number of letters)

ninety = 6(number of letters)

seventy = 7(number of letters)

sixtysix = 8(number of letters)

ninetysix=96(number of letters)

Then, likwise choose the number which has 9 letters in its Spelling.

 

 

4. The series follows a pattern that,

-9², +8², -7², +6², -5²

 

 

5. Given series is 372, 823, 644, 582, 46?, 8?7

Here the series follow the rule that :

372 = 3+7+2 = 12

823 = 8+2+3 = 13

644 = 6+4+4 = 14

582 = 5+8+2 = 15

46? = 4+6+? = 16 => ? = 6

8?7 = 8+?+7 = 17 => ? = 2

So the missing numbers are 6 and 2

 

6. The first numbers increase by 5, 7, 9, 11....

The letters move one step backward.

The last numbers are consecutive odd numbers.

 

7. The given number sequence is 101, 98, 93, 86, 75, ?

101

101 - 3 = 98

98 - 5 = 93

93 - 7 = 86

86 - 11 = 75

75 - 13 = 62

Here the series follows a pattern that consecutive subtraction of prime numbers.

 

8. The letters move 2, 2, 3, 3, 4, 4, ... steps forward.

9. This is an alternating series in alphabetical order. The middle letters follow the order ABCDE. The first and third letters are alphabetical beginning with J. The third letter is repeated as a first letter in each subsequent three-letter segment.

10. The given sequence a combination of two series:

I)Z, W, T, Q, ?      and      II)S, O, K, G, ?

The pattern I is

Z - 3 = W

W - 3 = T

T - 3 = Q

Q - 3 = N

The pattern in II is

S - 4 = O

O - 4 = K

K - 4 = G

G - 4 = C

 

11.    x : (x-3)and(x) :: y : (y-3) and (y)

so 7: (7-3=4)and (7) i.e. 47

 

12.     36+64 = 100

 81+19=100

 

13.    5 : 5²+10 :: 7 : 7²+10

 

16.    32: (3+2)(3x2)(3-2) :: 11 :: (1+1)(1x1)(1-1)

18.    Entire figure rotates 180 degree – 3

20.    Resultant figure is obtained by inverting the colour and enclosing the original figure (the outer shape i.e. Triangle) by one more side.

21.    In option(2) ,No vowel in the middle.

22.    Except in option 1, second term = first term x 3 +1

23.    All except Bear belong to cat family

24.    Except option 1, all are divisible by 11

25.    Except 35, all others are obtained by multiplying 5 with a composite