Number Difference Analysis: Spotting the Outlier
The question asks us to identify which number among the given options is different from the rest. To solve this, we need to examine the mathematical properties of each number and find a common pattern shared by most of them.
Perfect Square Pattern Identification
Let's analyze each number to see if there's a consistent mathematical property:
-
Option 1: 121
We check if 121 is a perfect square. A perfect square is a number resulting from squaring an integer. We find that \(11 \times 11 = 121\). Thus, 121 is the square of 11, written as \(11^2\). -
Option 2: 189
Next, we examine 189. We look for an integer whose square equals 189. We know \(13^2 = 169\) and \(14^2 = 196\). Since 189 falls between these two consecutive perfect squares, it cannot be a perfect square itself. -
Option 3: 169
For 169, we check if it's a perfect square. We find that \(13 \times 13 = 169\). Therefore, 169 is the square of 13, written as \(13^2\). -
Option 4: 144
Lastly, we consider 144. We find that \(12 \times 12 = 144\). So, 144 is the square of 12, written as \(12^2\). -
Option 5: (Empty)
This option does not contain a number and therefore cannot be compared based on mathematical properties. It is disregarded in the pattern analysis.
Determining the Different Number
Based on the analysis, we can see a clear pattern:
- 121 is a perfect square (\(11^2\)).
- 169 is a perfect square (\(13^2\)).
- 144 is a perfect square (\(12^2\)).
The number 189 does not fit this pattern as it is not a perfect square.
Therefore, the number that is different from the others is 189.
Similar Questions
- Apple, Banana, Carrot, Mango - which is the odd one?
Choose the figure which is different from the rest?
Among the given figures, identify the one that does not belong to the group based on the pattern.
Three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?
Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
(NOTE: The odd one out is not based on the number of vowels or consonants in the word)
Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
(NOTE: The odd one out is not based on the number of vowels or consonants in the word)
Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
(NOTE: The odd one out is not based on the number of vowels or consonants in the word)
- Four of the following five are alike in a certain way and hence form a group. Which is the one that does not belong to that group?
A. FHJL
B. KMOQ
C. PRTV
D. ACED
E. WYAC - Four of the following five are alike in a certain way and hence form a group. Which is the one that does not belong to that group?
1. SMILE: T NKLI
2. BRING: CSHMH
3. FLOUR: GMNVQ
4. HOUSE: IPVTF
5. TRUTH: USVUI - Find the number that doesn't belong:
Important Questions from Classification
Directions for the following 3 (three) items : consider the given information and answer the three items that follow.
A, B, C, D, E, F and G are Lecturers from different cities—Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them is specialized in a different subject, viz., Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order).
Further 1. Lecturer from Kanpur is specialized in Geography
2. Lecturer D is from Shillong
3. Lecturer C from Delhi is specialized in Sociology
4. Lecturer B is specialized in neither History nor Mathematics
5. Lecturer A who is specialized in Economics does not belong to Hyderabad
6. Lecturer F who is specialized in Commerce belongs to Srinagar
7. Lecturer G who is specialized in Statistics belongs to Chennai
Who is specialized in Geography?
A, B, C, D, E, F and G are Lecturers from different cities—Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them is specialized in a different subject, viz., Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order).
Further 1. Lecturer from Kanpur is specialized in Geography
2. Lecturer D is from Shillong
3. Lecturer C from Delhi is specialized in Sociology
4. Lecturer B is specialized in neither History nor Mathematics
5. Lecturer A who is specialized in Economics does not belong to Hyderabad
6. Lecturer F who is specialized in Commerce belongs to Srinagar
7. Lecturer G who is specialized in Statistics belongs to Chennai
To which city does the Lecturer specialized in Economics belong?
A, B, C, D, E, F and G are Lecturers from different cities—Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them is specialized in a different subject, viz., Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order).
Further 1. Lecturer from Kanpur is specialized in Geography
2. Lecturer D is from Shillong
3. Lecturer C from Delhi is specialized in Sociology
4. Lecturer B is specialized in neither History nor Mathematics
5. Lecturer A who is specialized in Economics does not belong to Hyderabad
6. Lecturer F who is specialized in Commerce belongs to Srinagar
7. Lecturer G who is specialized in Statistics belongs to Chennai
Who of the following belongs to Hyderabad?
In a school, there are five teachers A, B, C, D and E. A and B teach Hindi and English. C and B teach English and Geography. D and A teach Mathematics and Hindi. E and B teach History and French. Who teaches maximum numb, of subjects?
How many triangles are there in the given figure?
