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.

(3^rd number)² × 2 = 2^nd number & {2^nd number + (3^rd number)²} = 1^st number

(243, 162, 9) → (9² × 2 = 162) & (162 + 9² ⇒ 162 + 81 = 243)

(108, 72, 6) → (6² × 2 = 72) & (72 + 6² ⇒ 72 + 36 = 108)

Similarly,

(48, 32, 4) → (4² × 2 = 32) & (32 + 4² ⇒ 32 + 16 = 48)

Hence, "32" is the correct answer.

[{(1^st number + 2^nd number) × 2} + 1^st number] = 3^rd number [{(a + b) × 2} + a] = c

In first row: (7, 9, 39)

⇒ [{(7 + 9) × 2} + 7 = 39

In second row: (4, 8, 28)

⇒ [{(4 + 8) × 2} + 4] = 28

Similarly,

In third row: (6, 7, 32)

[{(6 + 7) × 2} + 6] = 32

Hence, "32" is the correct answer.

[{(1^st number × 3) - (2^nd number ÷ 3} = 3^rd number [(a × 3)  -  (b ÷ 3) = c]

(19, 81, 30) → [(19 × 3)  -  (81 ÷ 3)] ⇒ (57 - 27) = 30

(42, 57, 107) → [(42 × 3) - (57 ÷ 3)] ⇒ (126 - 19) = 107

Similarly,

(23, 45, ?) → [(23 × 3) -  (45 ÷ 3)] ⇒ (69 - 15) = 54

Hence, "54" is the correct answer.

[{(1^st number + (2^nd number × 4} + 1] = 3^rd number [a + (b × 4) + 1 = c]

In 1st row: (14, 4, 31)

⇒ {14 + (4 × 4) + 1} ⇒ (30 + 1) = 31

In 2nd row:

⇒ {10 + (4 × 4) + 1} ⇒ (78 + 1) = 79

In 3rd row: (30, 8, ?)

⇒ {30 + (8 × 4) + 1} ⇒ (62 + 1) = 63

Hence, "63" is the correct answer.

[{(1^st number × 2) + (2^nd number × 4)} - 2] = 3^rd number [{(2a + 3b) - 2} = c]

In 1st row : (6, 8, 34)

⇒ [{(6 × 2) + (8 × 3)} - 2] ⇒ (12 + 24) - 2 ⇒ 36 - 2 = 34

In 2nd row : (3, 2, 10)

⇒ [{(3 × 2) + (2 × 3)} - 2] ⇒ (6 + 6) - 2 ⇒ 12 - 2 = 10

Similarly,

In 3rd row : (11, 18, ?)

⇒ [{(11 × 2) + (18 × 3)} - 2] ⇒ (22 + 54) - 2 ⇒ 76 - 2 = 74

Hence, "74" is the correct answer.