# Choose the missing series from the giving four questions.

Question Nos. 1 to 4
Directions: Select the missing number from the given responses.
1. 1. 54
2. 78
3. 34
4. 24
1. 4
2. 2
3. 16
4. 32
1. 11
2. 10
3. 7
4. 4

4. find out missing (?) series.
5              6              7              8
10            18           21            40
7              9             10             ?

1. 13
2. 11
3. 20
4. 15

1. Answer: (3) 34

Explanation:-
36 = 3 + 6 = 9,
42 = 4 + 2 = 6,
Similarly, 34 = 3 + 4 = 7,

Hence, the answer is (3) 34.

2.  Answer: (3) 16

Explanation:-
The square root of 16 = 4,
The square root of 25 = 5,
The square root of 36 = 6,
The square root of 49 = 7
Then, the sum of all square roots = 4 + 5 + 6 + 7
= 22,
The square root of 9 = 3,
The square root of 64 = 8,
The square root of 1 = 1
Then, the sum of all square roots = 3 + 8 + 1 + sqrt, X = 16
12 + sqrt. X = 16
sqrt. X = 16 – 12
sqrt. X  = 4
Square on both side,
X = 4 x 4
X = 16 cm

Hence, the answer is (3) 16.

3.  Answer: (2) 10

Explanation:-

4.  Answer: (1) 13

Explanation:-