How many such pairs of letters are there in the word JOURNEY (in forward direction), each of which has as many letter in the same sequence between them in the word as in the English alphabet?
Two
This solution explains how to find pairs of letters within the word JOURNEY that have the same number of letters separating them as they do in the standard English alphabet. We will analyze the word letter by letter, considering only the forward direction.
First, let's list the letters in the word JOURNEY and their corresponding positions in the English alphabet:
| Letter | Position in JOURNEY | Position in English Alphabet |
|---|---|---|
| J | 1st | 10 |
| O | 2nd | 15 |
| U | 3rd | 21 |
| R | 4th | 18 |
| N | 5th | 14 |
| E | 6th | 5 |
| Y | 7th | 25 |
We need to check pairs of letters (A, B) such that A appears before B in JOURNEY, and the number of letters between A and B in JOURNEY is the same as the number of letters between A and B in the English alphabet. The number of letters between two positions 'x' and 'y' (where y > x) is calculated as \(y - x - 1\).
J and O: In JOURNEY: J (1st), O (2nd) -> 0 letters between. In Alphabet: J (10) to O (15) -> \(15 - 10 - 1 = 4\) letters between (K, L, M, N). Mismatch.
J and U: In JOURNEY: J (1st), U (3rd) -> \(3 - 1 - 1 = 1\) letter between (O). In Alphabet: J (10) to U (21) -> \(21 - 10 - 1 = 10\) letters between. Mismatch.
J and R: In JOURNEY: J (1st), R (4th) -> \(4 - 1 - 1 = 2\) letters between (O, U). In Alphabet: J (10) to R (18) -> \(18 - 10 - 1 = 7\) letters between. Mismatch.
J and N: In JOURNEY: J (1st), N (5th) -> \(5 - 1 - 1 = 3\) letters between (O, U, R). In Alphabet: J (10) to N (14) -> \(14 - 10 - 1 = 3\) letters between (K, L, M). Match! Pair found: (J, N).
J and E: In JOURNEY, J appears before E. However, alphabetically E comes before J. This is backward direction, so we skip this pair.
J and Y: In JOURNEY: J (1st), Y (7th) -> \(7 - 1 - 1 = 5\) letters between (O, U, R, N, E). In Alphabet: J (10) to Y (25) -> \(25 - 10 - 1 = 14\) letters between. Mismatch.
O and U: In JOURNEY: O (2nd), U (3rd) -> \(3 - 2 - 1 = 0\) letters between. In Alphabet: O (15) to U (21) -> \(21 - 15 - 1 = 5\) letters between. Mismatch.
O and R: In JOURNEY: O (2nd), R (4th) -> \(4 - 2 - 1 = 1\) letter between (U). In Alphabet: O (15) to R (18) -> \(18 - 15 - 1 = 2\) letters between (P, Q). Mismatch.
O and N: Backward direction (N comes before O alphabetically). Skip.
O and E: Backward direction (E comes before O alphabetically). Skip.
O and Y: In JOURNEY: O (2nd), Y (7th) -> \(7 - 2 - 1 = 4\) letters between (U, R, N, E). In Alphabet: O (15) to Y (25) -> \(25 - 15 - 1 = 9\) letters between. Mismatch.
U and R: Backward direction (R comes before U alphabetically). Skip.
U and N: Backward direction (N comes before U alphabetically). Skip.
U and E: Backward direction (E comes before U alphabetically). Skip.
U and Y: In JOURNEY: U (3rd), Y (7th) -> \(7 - 3 - 1 = 3\) letters between (R, N, E). In Alphabet: U (21) to Y (25) -> \(25 - 21 - 1 = 3\) letters between (V, W, X). Match! Pair found: (U, Y).
R and N: Backward direction (N comes before R alphabetically). Skip.
R and E: Backward direction (E comes before R alphabetically). Skip.
R and Y: In JOURNEY: R (4th), Y (7th) -> \(7 - 4 - 1 = 2\) letters between (N, E). In Alphabet: R (18) to Y (25) -> \(25 - 18 - 1 = 6\) letters between. Mismatch.
N and E: Backward direction (E comes before N alphabetically). Skip.
N and Y: In JOURNEY: N (5th), Y (7th) -> \(7 - 5 - 1 = 1\) letter between (E). In Alphabet: N (14) to Y (25) -> \(25 - 14 - 1 = 10\) letters between. Mismatch.
E and Y: In JOURNEY: E (6th), Y (7th) -> \(7 - 6 - 1 = 0\) letters between. In Alphabet: E (5) to Y (25) -> \(25 - 5 - 1 = 19\) letters between. Mismatch.
After analyzing all possible pairs in the forward direction, we found two pairs that satisfy the condition:
Therefore, there are 2 such pairs of letters in the word JOURNEY.
Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?
BDG, DFI, FHK, HJM, JLO, ?
Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?
ACDF, GIJL, MOPR, SUVX, YABD, ?
Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?
FLB, IOE, LRH, OUK,?
Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?
HKN, QTW, ZCF, ILO,?
Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?
JFH, KGI, LHJ, MIK, ?
Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?
TVX, SUW, RTV, QSU, ?
Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?
LNR, MOS, NPT, OQU, ?
Consider the following sequence of numbers: 5 1 4 7 3 9 8 5 7 2 6 3 1 5 8 6 3 8 5 2 2 4 3 4 9 6 How many odd numbers are followed by the odd number in the above sequence?
Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? _sr_tr_srs_r_srst_
Find the missing number in the following series: 43, 172, 86, 344, ?
Select the missing numbers from the given alternatives

Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order?
BDG, DFI, FHK, HJM, JLO, ?