Odd One Out (SSC CHSL 2019 Tier – 1)

But,

Iron is a metal.

Hence, "Iron" is the odd one.

The difference between positional values of alphabets are even.

FX → X(24) - F(6) ⇒ 24 - 6 = 18 (even number)

DP → P(16) - D(4) ⇒ 16 - 4 = 12 (even number)

CK → K(11) - C(3) ⇒ 11 - 3 = 8 (even number)

But,

ET → T(20) - E(5) ⇒ 20 - 5 = 15 (odd number)

Hence, "ET" is the odd one.

17523 is divisible by 3.

132 is divisible by 3.

2685 is divisible by 3.

But,

3164 is not divisible by 3.

Hence, "3164" is the odd one.

The pattern followed here is :

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

(182 : 13) → {13 × (13 + 1)} ⇒ (13 × 14) = 182

(156 : 12) → {12 × (12 + 1)} ⇒ (12 × 13) = 156

(132 : 11) → {11 × (11 + 1)} ⇒ (11 × 12) = 132

But,

(309 : 17) → {17 × (17 + 1)} ⇒ (17 × 18) = 306

Hence, "(309 : 17)" is the odd one.

The pattern followed here is :

{3^rd letter = Opposite of 1^st letter} & {4^th letter = Opposite of 2^nd letter}

BEYV → (B ↔ Y) & (E ↔ V)

MONL → (M ↔ N) & (O ↔ L)

HJSQ → (H ↔ S) & (J ↔ Q)

But,

NOPE → (N ↔ M ≠ P) & (O ↔ L ≠ E)

Hence, "NOPE" is the odd one.

But,

Decibel Meter is used to measure noise.

Hence, "Decibel" is the odd one.

The pattern followed here is :

{1^st letter + 3 = 2^nd letter}, {2^nd letter + 3 = 3^rd letter} & {3^rd letter + 3 = 4^th letter}

FILO → (F + 3 = I), (I + 3 = L) & (L + 3 = O)

EHKN → (E + 3 = H), (H + 3 = K) & (K + 3 = N)

ADGJ → (A + 3 = D), (D + 3 = G) & (G + 3 = J)

But,

CFIM → (C + 3 = F), (F + 3 = I) & ( I + 3 ≠ M)

Hence, "CFIM" is the odd one.

360 is multiples of 3

231 is multiples of 3

123 is multiples of 3

But,

340 is not multiples of 3

Hence, "340" is the odd one.

The pattern followed here is :

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

(192, 384, 576) → (192 × 2 = 384) & (192 × 3 = 576)

(219, 438, 657) → (219 × 2 = 438) & (219 × 3 = 657)

(327, 654, 981) → (327 × 2 = 654) & (327 × 3 = 981)

But,

(352, 436, 646) → (352 × 2 = 704 ≠ 436) & (352 × 3 = 1056 ≠ 646)

Hence, "(352, 436, 646)" is the odd one.