Coding – Decoding (SSC MTS 2020 Tier 1)

1. In a certain code language, 'FEVERISH' is coded as '29' and 'COUNSEL' is coded as '98'. How will 'MUTATE' be coded in the same code language? [S.S.C MTS 05/10/2021 (Morning)]

(a) 48
(b) 80
(c) 92
(d) 84

Correct Answer: (a) 48

Solution:

2. In a certain code language, 'DOSIER' is written as 'DEIORS'. How will 'CORTEX' be written in that language? [S.S.C MTS 06/10/2021 (Afternoon)]

(a) DPSUFY
(b) ECROXT
(c) CEORTX
(d) CEROXT

Correct Answer: (c) CEORTX

Solution:Here, alphabets are arranged as per their positional values.

DOSIER → D < E < I < O < R < S
So, CORTEX will be written as CEORTX.

3. In a certain code language, 'WORSHIP' is written as '23418198316' and 'ROAD' is written as '18414', how will 'REDUCE' be written in that language? [S.S.C MTS 06/10/2021 (Afternoon)]

(a) 1824532
(b) 1823132
(c) 9546035
(d) 1854735

Correct Answer: (a) 1824532

Solution:Here, vowels are arranged as:
a = 1, e = 2, i = 3, o = 4, u = 5
And consonants are arranged as per their positional values.
W = 23, O = 4, R = 18, S = 19, H = 8, I = 3, P = 16 → 23418198316
Similarly,
R = 18, E = 2, D = 4, U = 5, C = 3, E = 2 → 1824532

4. In a certain code language, if 'FINALIZE' is written as 'JKRCPKBG', how will 'INSIGNIA' be written in the same code language? [S.S.C MTS 06/10/2021 (Evening)]

(a) MRWMKRMG
(b) MPTMIPMG
(c) KRWKKRKC
(d) GRWGKRGY

Correct Answer: (c) KRWKKRKC

Solution:FINALIZE
Add +4 in consonant, Add +2 in vowels
(F + 4 = J), (I + 2 = K), (N + 4 = R), (A + 2 = C), (L + 4 = P), (I + 2 = K), (Z + 4 = B), (E + 2 = G)

→ JKRCPKBG
Similarly, INSIGNIA
(I + 2 = K), (N + 4 = R), (S + 4 = W), (I + 2 = K), (G + 4 = K), (N + 4 = R), (I + 2 = K), (A + 2 = C)

→ KRWKKRKC

5. In a certain code language, 'CLOT' is written as '6243040'. How will 'MOSAIC' be written in that language? [S.S.C MTS 08/10/2021 (Afternoon)]

(a) 2630382186
(b) 2630382206
(c) 2830382183
(d) 2632362186

Correct Answer: (a) 2630382186

Solution:Logic: Here, the positional value is doubled.
C → positional value = 3 × 2 = 6
L → positional value = 12 × 2 = 24
O → positional value = 15 × 2 = 30
T → positional value = 20 × 2 = 40

→6243040
Similarly, for MOSAIC
M → positional value = 13 × 2 = 26
O → positional value = 15 × 2 = 30
S → positional value = 19 × 2 = 38
A → positional value = 1 × 2 = 2
I → positional value = 9 × 2 = 18
C → positional value = 3 × 2 = 6

→ 2630382186

6. In a certain language, if January = 4, July = 3, and September = 6, then December = ? [S.S.C MTS 14/10/2021 (Afternoon)]

(a) 6
(b) 8
(c) 5
(d) 7

Correct Answer: (c) 5

Solution:Total number of consonants in a particular word.
JANUARY → total number of consonants = 4
SEPTEMBER → total number of consonants = 6
Similarly,

DECEMBER → total number of consonants = 5