Coding

2016 · Q61

A military code writes SYSTEM as SYSMET and NEARER as AENRER. Using the same code, FRACTION can be written as:

1. (a)CARFTION
2. (b)FRACNOIT
3. (c)NOITCARF
4. (d)CARFNOITUPSC key

2017 · Q60

In a certain code, ‘256’ means ‘red colour chalk’, ‘589’ means ‘green colour flower’ and ‘254’ means ‘white colour chalk’. The digit in the code that indicates ‘white’ is

1. (a)2
2. (b)4UPSC key
3. (c)5
4. (d)8

2018 · Q21

If LSJXVC is the code for MUMBAI, the code for DELHI is

1. (a)CCIDDUPSC key
2. (b)CDKGH
3. (c)CCJFG
4. (d)CCIFE

2018 · Q22

If RAMON is written as 12345 and DINESH as 675849, then HAMAM will be written as

1. (a)92233
2. (b)92323UPSC key
3. (c)93322
4. (d)93232

2019 · Q68

If every alternative letter of the English alphabet from B onwards (including B) is written in lower case (small letters) and the remaining letters are capitalized, then how is the first month of the second half of the year written?

1. (a)JuLY
2. (b)jULy
3. (c)jUly
4. (d)jUlYUPSC key

2019 · Q74

If $ means 'divided by'; @ means 'multiplied by'; # means 'minus', then the value of 10#5@1$5 is

1. (a)0
2. (b)1
3. (c)2
4. (d)9UPSC key

2020 · Q48

The letters from A to Z are numbered from 1 to 26 respectively. If GHI = 1578 and DEF = 912, then what is ABC equal to?

1. (a)492
2. (b)468
3. (c)262
4. (d)246UPSC key

2021 · Q56

In a code language 'MATHEMATICS' is written as 'LBSIDNZUHDR'. How is 'CHEMISTRY' written in that code language?

1. (a)DIDLHRSSX
2. (b)BIDNHTSSXUPSC key
3. (c)BIDLHTSSX
4. (d)DGFLIRUQZ

2022 · Q16

If the order of the letters in the English alphabet is reversed and each letter represents the letter whose position it occupies, then which one of the following represents ‘LUCKNOW’?

1. (a)OGXPMLD
2. (b)OGXQMLE
3. (c)OFXPMLE
4. (d)OFXPMLDUPSC key

2023 · Q37

If ‘ZERO’ is written as ‘CHUR’, then how is ‘PLAYER’ written?

1. (a)SOCAGT
2. (b)SODBGT
3. (c)SODBHT
4. (d)SODBHUUPSC key

2024 · Q75

If a + b means a − b; a − b means a × b; a × b means a ÷ b; a ÷ b means a + b, then what is the value of 10 + 30 − 100 × 50 ÷ 25? (Operations are to be replaced simultaneously)

1. (a)15
2. (b)0
3. (c)−15
4. (d)−25UPSC key

2024 · Q77

If in a certain code, ‘ABCD’ is written as 24 and ‘EFGH’ is written as 1680, then how is ‘IJKL’ written in that code?

1. (a)11880UPSC key
2. (b)11240
3. (c)7920
4. (d)5940

2024 · Q78

If in a certain code, ‘POT’ is written as ATOP and ‘TRAP’ is written as APART, then how is ‘ARENA’ written in that code?

1. (a)AARENA
2. (b)AANREA
3. (c)AANEAR
4. (d)AANERAUPSC key

2025 · Q38

If P = +, Q = −, R = ×, S = ÷, then insert the proper notations between the successive numbers in the equation 60_15_3_20_4 = 20:

1. (a)SPRQ
2. (b)QRPSUPSC key
3. (c)QRSP
4. (d)SPQR

2025 · Q56

If NO is coded as 210, NOT is coded as 4200 and NOTE is coded as 21000, then how is NOTES coded?

1. (a)399000UPSC key
2. (b)420000
3. (c)440000
4. (d)630000

2025 · Q57

If FRANCE is coded as 654321 and GERMANY is coded as 9158437, then how is YEMEN coded?

1. (a)54321
2. (b)81913
3. (c)71913
4. (d)71813UPSC key

2025 · Q66

In a certain code if 64 is written as 343 and 216 is written as 729, then how is 512 written in that code?

1. (a)1000
2. (b)1331UPSC key
3. (c)1728
4. (d)2197

2026 · Q67

If ZERO is encoded as ADSN, then how do you encode STOP?

1. (a)SPOT
2. (b)TSPOUPSC key
3. (c)TSOP
4. (d)POST