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Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
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ಕೆಳಗಿನ ಅಕ್ಷರ ಸರಣಿಯನ್ನು ನೋಡಿ ಮತ್ತು ಅದರ ನಂತರದ ಪ್ರಶ್ನೆಗೆ ಉತ್ತರಿಸಿ.
(ಎಡ) MPLTVHBUINGFDCREWXLMPOTYRCDSWZXDF (ಬಲ)
ಸರಣಿಯ ಬಲ ತುದಿಯಿಂದ ಆರನೇ ಅಕ್ಷರ ಮತ್ತು ಎಡ ತುದಿಯಿಂದ ಆರನೇ ಅಕ್ಷರದ ನಡುವೆ ಸರಣಿಯಲ್ಲಿ ಎಷ್ಟು ಅಕ್ಷರಗಳಿವೆ?
21
22
23
20
21
Count positions from ends: The total length of the series is 36. 6th from the right is position (36 - 6 + 1) = 31st. 6th from the left is 6th. The number of elements between index i and j is |i - j| - 1.
Count positions from ends: The total length of the series is 36. 6th from the right is position (36 - 6 + 1) = 31st. 6th from the left is 6th. The number of elements between index i and j is |i - j| - 1.
Analyze the Series Length
Counting the provided characters: M(1) P(2) L(3) T(4) V(5) H(6) B(7) U(8) I(9) N(10) G(11) F(12) D(13) C(14) R(15) E(16) W(17) X(18) L(19) M(20) P(21) O(22) T(23) Y(24) R(25) C(26) D(27) S(28) W(29) Z(30) X(31) D(32) F(33). Total length = 33.
Identify Positions
The 6th letter from the left is 'H' (index 6). The 6th letter from the right in a series of 33 is index (33 - 6 + 1) = 28th letter. The 28th letter is 'S'.
Calculate Letters Between
Number of letters between position 6 and 28 is (28 - 6) - 1 = 22 - 1 = 21.
B: 22 is incorrect as it fails to subtract the inclusive boundary. C: 23 is incorrect due to miscounting the indices. D: 20 is incorrect as it subtracts one too many.
A is correct because the 6th letter from the left is at index 6 and the 6th from the right is at index 28, and (28-6-1) equals 21.
Always verify the total length of the provided alphanumeric string first, as counting errors are the most common cause of failure in sequence-based questions.
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