CA Foundation · Quantitative Aptitude · Number Series, Coding-Decoding and Odd Man Out
In a certain code, letters are given reverse position values, so A=26, B=25, C=24, and so on up to Z=1. How will the word CAT be written in this code?
CAT is written as 24-26-7. In the reverse coding, each letter's value is 27 minus its normal position, so C becomes 24, A becomes 26 and T becomes 7.
- A3-1-20
- B24-26-8
- C24-26-7Correct
- D23-26-7
Explanation
Reverse value = 27 minus the normal position. C is 3, so its code is 24. A is 1, so its code is 26. T is 20, so its code is 7. The code is 24-26-7. The normal-position code 3-1-20 ignores the reversal.
Did you get it right without looking?
One question tells you little. A timed set on Number Series, Coding-Decoding and Odd Man Out shows your real accuracy, how long you take and where you lose marks.
More Number Series, Coding-Decoding and Odd Man Out questions
- In a certain code, CAT is written as 3-1-20 and DOG is written as 4-15-7. Using the same rule, what is the code for the word FISH?
- Find the next term in the series: B, D, G, K, P, ?
- Find the next term in the series: AB, DG, HM, MT, ?
- In the series 5, 10, 20, 40, 80, ?, what is the missing number?
- In a certain code, RUPEE is written as SWSIJ. Using the same rule, how will LEDGER be written?
- Find the missing group in the series: ACE, GIK, MOQ, ?