Odd One Out (SSC CHSL 2019 Tier – 1)

The pattern followed here is :

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

(22 : 506) → {22 × (22 + 1} ⇒ (22 × 23) = 506

(14 : 210) → {14 × (14 + 1)} ⇒ (14 × 15) = 210

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

But,

(11 : 142) → {11 × (11 + 1)} ⇒ (11 × 12) = 132 ≠ 142

Hence, (11 : 142) is the odd one.

All letter clusters (ADGPI, OMKLU & ECVMU) start and end with a vowel.

But,

VDCKA only ends with a vowel and starts with a consonant.

Hence, VDCKA is the odd one.

AMANA → There are three vowels in it

UGALI → There are three vowels in it

OMANI → There are three vowels in it

But,

EVOLV → There are two vowels in it

Hence, EVOLV is the odd one.

But,

Disband refers to breaking up.

Hence, "Disband" is the odd one.

CUX → Vowel is in middle

BIZ → Vowel is in middle

MOW → Vowel is in middle

But,

ABY → Vowel is not in middle.

Hence, "ABY" is the odd one.

The pattern followed here is :

{1^st letter + 3 = 2^nd letter}, {2^nd letter + 4 = 3^rd letter} & {3^rd letter + 5 = 4^th letter}

ADHM → (A + 3 = D), (D + 4 = H) & (H + 5 = M)

ORVA → (O + 3 = R), (R + 4 = V) & (V + 5 = A)

ILPU → (I + 3 = L), (L + 4 = P) & (P + 5 = U)

But,

VRVO → (V + 3 ≠ R), (R + 4 = V) & (V + 5 ≠ O)

Hence, "VRVO" 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} & {4^th letter - 3 = 5^th letter}

NKHEB → (N - 3 = K), (K - 3 = H), (H - 3 = E) & (E - 3 = B)

SPMJG → (S - 3 = P), (P - 3 = M), (M - 3 = J) & (J - 3 = G)

UROLI → (U - 3 = R), (R - 3 = O), (O - 3 = L) & (L - 3 = I)

But,

FHLQR → (F - 3 ≠ H), (H - 3 ≠ L), (L - 3 ≠ Q) & (Q - 3 ≠ R)

Hence, "FHLQR" is the odd one.

In LMNO, ABCD & IJKL all have vowels

But,

WXYZ don't have vowel

Hence, "WXYZ" is the odd one.

The product of 1^st & 3^rd digit = 2^nd digit

393 → 3 × 3 = 9

441 → 4 × 1 = 4

600 → 6 × 0 = 0

But,

384 → 3 × 4 = 12 ≠ 8

Hence, "384" is the odd one.

The pattern followed here is :

{1^st letter + 2 = 2^nd letter}, {2^nd letter + 2 = 3^rd letter}, {3^rd letter + 2 = 4^th letter} & {4^th letter + 2 = 5^th letter}

KMOQS → (K + 2 = M), (M + 2 = O), (O + 2 = Q) & (Q + 2 = S)

PRTVX → (P + 2 = R), (R + 2 = T), (T + 2 = V) & (V + 2 = X)

FHJLN → (F + 2 = H), (H + 2 = J), (J + 2 = L) & (L + 2 = N)

But,

SQOMK → (S + 2 ≠ Q), (Q + 2 ≠ O), (O + 2 ≠ M) & (M + 2 ≠ K)

Hence, "SQOMK" is the odd one.