to enroll in courses, follow best educators, interact with the community and track your progress.
9 lessons,
55m 25s
Enroll
762
Coding Decoding
735 plays

More
In this video Aishwarya discusses the various coding and decoding problems which have appeared in the previous year preliminary examination of UPSC CSE GS paper 2.

Aishwarya Nair
Cleared half a dozen government exams. Presently at Railways. Former faculty at KAS Mentor. Follow for Exam preparation strategies.

U
mam very very nice question
Thanks for this course mam
thank you mam
1. Coding Decoding and Misc. Course: Crash Course on CSAT for UPSC CSE Presented by Aishwarya Nair

2. . A military code writes SYSTEM as SYSMET and NEARER as AENRER. Using the same code, FRACTION can be written as A. CARFTION B. FRACNOIT C. NOITCARF D. CARFNOIT

3. If R and S are different integers, both divisible by 5, then which of the following is not necessarily true A. R -S is divisible by 5 B. R +S is divisible by io C. RXS is divisible by 25 D. R2 S2 is divisible by 5

4. S 35

5. . Consider the following: A B means A is the son of B. A - B means A is the wife of B. What does the expression P+ R- Q mean? A. Q Is the son of P B. Q is the wife of P C. Q is the father of P D. None of the above

6. . In a certain code, '256' means 'red color chalk, 589' means green color flower' and '254' means white color chalk. The digit in the code that indicates 'white' is A. 2 B. 4 C. 5 D. 8