Missing Number (SSC CGL 2019 Tier -1)

(First column number ) - (Second column number) = (Total number)×2 = (Third column number)

15 - 3 = 12× 2 = 24

21 - 6 = 15× 2 = 30

49 - 5 = 44× 2 = 88

Hence, "88" is the correct answer.

(First column term) * (Second column number - Third column number) = Fourth column term

column i ⇒ 10(15 - 14) = 10

in column ii ⇒ 4(7 - 3) = 16

In column iii ⇒ 7(8-6) = 14

In column iv ⇒ 5(25 - 12) = 65

Hence, "16" is the correct answer.

1st column, 8 ×4 = 32, ⇒ 32-3 = 29

Second column, 11 x 7 = 77, ⇒ 77-6 = 71

Similarly,  Third column, 14 × 5 = 70, ⇒ 70-3 = 67

Hence, "5" is the correct answer.

(1st column term × 2nd column term) = Total number - (1st column term + 2nd column term) = (Third number)

7 × 3 = 21 - (7 + 3) = 21 - 10 = 11

9 × 4 = 36 - (9 + 4) = 36 - 13 = 23

Similarly: 11× 7=77-(18) = 59

Hence, "59" is the correct answer.

Sol.212.(c) 11 ^ 2 - 4 ^ 3 = 57

Similarly, 12 ^ 2 - 5 ^ 3 = 19, 18 ^ 2 - 6 ^ 3 = 108

Hence, "108" is the correct answer.

(First number ) + 2 ⇒ (Second number) + 4 = (Third number)

logic:-

Row 1 ⇒ 11 + 2 ⇒ 13, 13 + 4 = 17

Row 2 ⇒ 33 + 2 ⇒ 35, 35+4 = 39

Similarly,

Row 3⇒  189 + 2 ⇒ 191, 191+4 = 195

Hence, "195" is the correct answer.