Coding and decoding
Ten reasoning questions, each marked as you answer.
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In a certain code, WATER is written as XBUFS. How is TRAIN written in that code?
Answer and working
Answer C
From WATER → XBUFS: each letter moves 1 place forward. Applied to TRAIN: USBJO.
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In a certain code, GARDEN is written as TZIWVM. How is RAIN written in that code?
Answer and working
Answer B
From GARDEN → TZIWVM: each letter is replaced by its opposite in the alphabet (A ↔ Z, B ↔ Y …). Applied to RAIN: IZRM.
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In a certain code, CARPET is written as VGRTCE. How is DOOR written in that code?
Answer and working
Answer C
From CARPET → VGRTCE: the word is written backwards and each letter moves 2 forward. Applied to DOOR: TQQF.
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In a certain code, MILK is written as JKHL. How is RAIN written in that code?
Answer and working
Answer D
From MILK → JKHL: the word is written backwards and each letter moves 1 back. Applied to RAIN: MHZQ.
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In a certain code, PLANT is written as QKBMU. How is LAMP written in that code?
Answer and working
Answer A
From PLANT → QKBMU: letters in odd places move 1 forward, letters in even places move 1 back. Applied to LAMP: MZNO.
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In a certain code, MANGO is written as NZMTL. How is ROAD written in that code?
Answer and working
Answer C
From MANGO → NZMTL: each letter is replaced by its opposite in the alphabet (A ↔ Z, B ↔ Y …). Applied to ROAD: ILZW.
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In a certain code, CARPET is written as 63. How is PENCIL written in that code?
Answer and working
Answer A
CARPET = 63 is the sum of the letters’ positions in the alphabet (A = 1 … Z = 26). For PENCIL: 16 + 5 + 14 + 3 + 9 + 12 = 59.
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In a certain code, SISTER is written as RHRSDQ. How is BOTTLE written in that code?
Answer and working
Answer A
From SISTER → RHRSDQ: each letter moves 1 place back. Applied to BOTTLE: ANSSKD.
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In a certain code, TRAIN is written as 124. How is LADDER written in that code?
Answer and working
Answer D
TRAIN = 124 is twice the sum of the letters’ positions in the alphabet. For LADDER: 12 + 1 + 4 + 4 + 5 + 18 doubled = 88.
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In a certain code, PAPER is written as RCRGT. How is GLASS written in that code?
Answer and working
Answer D
From PAPER → RCRGT: each letter moves 2 places forward. Applied to GLASS: INCUU.
More reasoning: Number and letter series, Analogies, Odd one out, Blood relations, Direction sense, Seating in a row.