Missing Number (Varieties Questions)

(First number × 6) = (Second number × Third number)

(3, 9, 2) → (3 × 6) = 9 × 2 ⇒ 18 = 18

(8, 6, 8) → (8 × 6) = 6 × 8 ⇒ 48 = 48

Similarly,

(5, 3, ?) → (5 × 6) = 3 × 10 ⇒ 30 = 30

Hence, "30" is the correct answer.

First number = (Second number × Third number) ÷ 3

(4, 2, 6) → (2 × 6) ÷ 3 = 4

(9, 3, 9) → (3 × 9) ÷ 3 = 9

Similarly,

(24, 6, ?) → (6 × x) ÷ 3 = 24

x = (24 × 3) ÷ 6 = 12

Hence, "12" is the correct answer.

(First number + Second number) + (First number ÷ 4) = Third number

First row: (16, 15, 35)

(16 + 15) + (16 ÷ 4) = 35

Second row: (12, 18, 33)

(12 + 18) + (12 ÷ 4) = 33

Similarly,

Third row: (8, 17, ?)

(8 + 17) + (8 ÷ 4) ⇒ 25 + 2 = 27

Hence, "27" is the correct answer.

[{(Second number) ÷ 2} + Third number] = (First number)

(14, 10, 9) → [{(10 ÷ 2) + 9}] = 14

(6, 8, 2) → [{(8 ÷ 2) + 2}] = 6

Similarly,

(8, 4, ?) → [{(4 ÷ 2) + ?}] = 8
? = 6

Hence, "6" is the correct answer.

(1st number)³ = 2nd number & {(2nd number - (1st number)²} = 3rd number

First row: (6, 216, 180)

6³ = 216 & 216 - 6² = 180

Second row: (8, 512, 448)

8³ = 512 & 512 - 8² = 448

Similarly,

Third row: (10, 1000, ?)

10³ = 1000 & 1000 - 10² = 900

Hence, "900" is the correct answer.

(243, 162, 9) → (9² × 3 : 9² × 2 : 9)
(108, 72, 6) → (6² × 3 : 6² × 2 : 6)

Similarly,
(48, 32, 4) → (4² × 3 : 4² × 2 : 4)

In first row: (7 + 9) × 2 → 32 + 7 = 39
In second row: (4 + 8) × 2 → 24 + 4 = 28

Similarly,
In the third row: (6 + 7) × 2 → 26 + 6 = 32

(19 × 3)  -  (81 ÷ 3) = 30, (42 × 3) ÷ (57 ÷ 3) = 107
(23 × 3) -  (45 ÷ 3) = 54

In 1st row: 14 + (4 × 4) + 1 = 30 + 1 = 31
In 2nd row: 10 + (4 × 4) + 1 = 78 + 1 = 79
In 3rd row: 30 + (8 × 4) + 1 = 62 + 1 = 63

In 1st row,

(6 × 2) + (8 × 3) - (12 + 24) - 2 = 34
In 2nd row,
(3 × 2) + (2 × 3) - (6 + 6) - 2 = 10

Similarly, in 3rd row,
(11 × 2) + (18 × 3) - 22 + 54 ÷ 76 - 2 = 74