Home›UPSC Prelims›Paper 2: General Studies II (CSAT)›Civil Services Aptitude Test (CSAT)›Basic Numeracy & Data Interpretation›If the order of the letters in the English alphabet is reversed and

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'?

20223Mprelimsupscyear-2022p2quantitative-aptitudequantitative-abilitysequence-and-series
A.OGXPMLD
B.OGXQMLE
C.OFXPMLE
D.OFXPMLDCorrect
Explanation & Solution

Correct Option: OFXPMLD

When the English alphabet is reversed (Z is 1st, Y is 2nd, ..., A is 26th), each letter is replaced by its opposite letter (A becomes Z, B becomes Y, ..., L becomes O, etc.). Let us find the reverse for each letter of 'LUCKNOW': - L (12th from start) becomes 12th from end, which is O? Wait! Reverse mapping: position of letter in reverse alphabet is 27 minus its original position. L is 12. 27 - 12 = 15, which is O. Wait, let's check standard alphabet opposite: A-Z, B-Y, C-X, D-W, E-V, F-U, G-T, H-S, I-R, J-Q, K-p, L-O, M-N. Let's check L -> O. U -> F. C -> X. K -> P. N -> M. O -> L. W -> D. Putting them together: O-F-X-P-M-L-D. Let us match with options: Option A: OGXPMLD, Option B: OGXQMLE, Option C: OFXPMLE, Option D: OFXPMLD. Notice that L opposite is O? Wait, if alphabet is reversed, A becomes Z, B becomes Y... Wait, the question states: 'each letter represents the letter whose position it occupies' in the reversed order. This means if original 1st letter A now occupies position 27-1=26 (Z), then A becomes Z. So L (12th) becomes letter at position 12 in the reverse alphabet, which is O? No! Position 12 in reverse alphabet (counting from Z=1, Y=2...) is O. Let's check: Z(1), Y(2), X(3), W(4), V(5), U(6), T(7), S(8), R(9), Q(10), P(11), O(12). Yes, 12th letter from Z is O! Wait, let's check options: OFXPMLD. L(12) -> O. U(21) -> F. C(3) -> X. K(11) -> P. N(14) -> M. O(15) -> L. W(23) -> D. Thus OFXPMLD. Option D is correct.

हिंदी में प्रश्न एवं आदर्श उत्तर

यदि अंग्रेजी वर्णमाला के क्रम को उल्टा कर दिया जाए और नए क्रम में आया हर वर्ण उस वर्ण को निरूपित करे जिसका मूल स्थान उसने लिया है, तो निम्नलिखित में से कौन-सा एक 'LUCKNOW' को निरूपित करता है?

A.OGXPMLD
B.OGXQMLE
C.OFXPMLE
D.OFXPMLDसही

सही उत्तर: OFXPMLD

जब अंग्रेजी वर्णमाला के क्रम को उल्टा कर दिया जाता है (Z से A), तो प्रत्येक वर्ण अपने विपरीत वर्ण से प्रतिस्थापित हो जाता है। L (12वाँ) का विपरीत O है, U (21वाँ) का विपरीत F है, C (3रा) का विपरीत X है, K (11वाँ) का विपरीत P है, N (14वाँ) का विपरीत M है, O (15वाँ) का विपरीत L है, और W (23वाँ) का विपरीत D है। इन सभी वर्णों को क्रमानुसार रखने पर 'OFXPMLD' प्राप्त होता है। अतः सही विकल्प D है।

See this question in context →
Free Android App

Practice Better on the StatePYQ Mobile App

⚡ Error Diary · ⏱ Timed Mains Answer Pacer · 📴 Offline Revision Vault

Get it onGoogle Play