CONSERVATION, SERVAT, ONSERVATIO, ERVA, ?
Series Pattern Analysis
The problem requires finding the next term in the series: CONSERVATION, SERVAT, ONSERVATIO, ERVA, ?
We analyze the properties of each given term:
- Term 1: CONSERVATION (Length 12)
- Term 2: SERVAT (Length 6)
- Term 3: ONSERVATIO (Length 10)
- Term 4: ERVA (Length 4)
Identifying the Length Pattern
The lengths of the terms are 12, 6, 10, 4.
Let's find the difference between consecutive lengths:
- Difference 1: $6 - 12 = -6$
- Difference 2: $10 - 6 = +4$
- Difference 3: $4 - 10 = -6$
The pattern of differences is -6, +4, -6. This suggests the next difference in the sequence should be +4.
Calculate the length of the fifth term:
Length of Term 5 = Length of Term 4 + Next Difference = $4 + 4 = 8$.
Determining the Next Term Indices
We assume the terms are contiguous substrings of the original word W = CONSERVATION.
The indices (1-based) within CONSERVATION are:
- Term 1 (CONSERVATION): Start=1, End=12
- Term 2 (SERVAT): Start=4, End=9
- Term 3 (ONSERVATIO): Start=3, End=12
- Term 4 (ERVA): Start=5, End=8
Observe the sequence of start indices: 1, 4, 3, 5. The changes are +3, -1, +2.
Observe the sequence of end indices: 12, 9, 12, 8. The changes are -3, +3, -4.
Based on observed patterns, the next changes could be -2 for the start index and +2 for the end index.
- Next Start Index = Previous Start Index + (-2) = $5 + (-2) = 3$.
- Next End Index = Previous End Index + 2 = $8 + 2 = 10$.
These indices (3, 10) yield a substring of length $10 - 3 + 1 = 8$, matching the predicted length.
Constructing the Next Term
Extract the substring from CONSERVATION using the calculated indices (Start=3, End=10):
Word: C O N S E R V A T I O N
Index: 1 2 3 4 5 6 7 8 9 10 11 12
The substring from index 3 to 10 is NSERVATI.
Final Answer
The next term in the series is NSERVATI.
Important Questions from Alphabet or Word Test (Notes)
- Arrange the given words in the sequence in which they occur in the dictionary:
(A). SEARCH
(B). SEWAGE
(C.) SECURE
(D). SETTLE
Choose the correct answer from the options given below: Refer to the following letter series and answer the question.
(Left) C H T M L K N B P G Q D V W R A X Z F Y E S (Right)
How many unique vowels are there in the above series? (Each vowel counted only once regardless of repetition.)This question is based on the words given below.
IRE AWE DAY FUR
In each of the words, each vowel is changed to the second letter preceding it in the English alphabetical order, and each consonant is changed to the letter immediately following it in the English alphabetical order. In how many letter-clusters thus formed will no vowel appear?This question is based on the following words.
(Left) ONE TWO BEN MUG (Right)
If 'C' is added before each word, which of these words will form meaningful English word(s)?
This question is based on the following words.
PAN YEW CRY URN
How many letters are there in the English alphabetical order between the second letter of the second word from the right and the third letter of the second word from the left?
