2018 CSAT, all questions
UPSC Prelims 2018 · CSAT
Question 22: Logical Reasoning and Mental Ability
If RAMON is written as 12345 and DINESH as 675849, then HAMAM will be written as
a92233
b92323
c93322
d93232
AnswerUPSC’s answer is (b).
Build the letter key from both given words. RAMON = 12345 gives R=1, A=2, M=3, O=4, N=5. DINESH = 675849 gives D=6, I=7, N=5, E=8, S=4, H=9. Now HAMAM is H, A, M, A, M, which is 9, 2, 3, 2, 3, so the code is 92323. In coding questions, tabulate every letter you can before translating.
Why each option is right or wrong
- (a) 92233 has 2 for the third letter; M is 3.
- (b) Correct: H=9, A=2, M=3, A=2, M=3.
- (c) 93322 has 3 for the second letter; A is 2.
- (d) 93232 has 3 for the second letter; A is 2.
Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 2018, General Studies Paper II (CSAT), Series A. The paper on upsc.gov.in.