Number Classification - Choosing The Odd Numeral
Number Classification - Choosing The Odd Numeral
In these type of questions, certain numbers are given, out of which all except one share some common property and hence are alike. From the given numbers, one number is different and this number is odd among them and hence is chosen to be the answer.
Example 1 : Find the odd one out of these 51, 144, 64, 121, 256
(a) 51 (b) 144 (c) 64 (d) 121 (e) 256
Answer : (a)
Explanation : as we analyse the items in the group we see that
144 is square of 12,
64 is square of 8,
121 is square of 11,
256 is square of 16
But 51 is not a square of any number hence is the odd one in the group.
Example 2 : Find the odd one out of these 38, 57, 76, 95, 118.
(a) 38 (b) 76 (c) 118 (d) 57
Answer (c)
Explanation : In the given numbers every term is multiple of 19, but only 118 is not multiple of 19.
19X2 = 38
19X3 = 57
19X4 = 76
19X5 = 95
19X6 = 114....soon
So, the odd one is 118.
Example 3 : Identify the odd one out of these 2384, 1592, 3756, 4298, 3629
(a) 2384 (b) 1592 (c) 3756 (d) 4298 (e) 3629
Answer : (e)
Explanation : When we analyse the items we see that
In 2384 we see that the last digit that is 4 is double the first digit 2
In 1592 we see that the last digit that is 2 is double the first digit 1
In 3756 we see that the last digit that is 6 is double the first digit 3
In 4298 we see that the last digit that is 8 is double the first digit 4
But in 3629 we see that the last digit that is 9 is not the double the first digit 3 Hence this number is the odd element.
Example 4 : Identify the odd one out of these 144, 196, 216 ,256, 289.
(a) 144 (b) 196 (c) 216 (d) 256 (e) None of these
Answer : (c)
Explanation : In the given terms every number is the square of number except 216.
But,
So, the odd one is 216.
Example 5 : Identify the odd one out of these 7, 15, 31, 57
(a) 7 (b) 15 (c) 31 (d) 57
Answer : (d)
Explanation : when we analyse the items we see that
7 can be obtained from the formula
15 can be obtained from the formula
31 can be obtained from the formula
But 57 can not be obtained from this formula or we can say can not be expressed as a power of 2. Hence,57 is the odd one in the group.
Example 6 : Identify the odd one out of these 1728, 2197, 1024, 2744, 3375
(a) 1728 (b) 2197 (c) 1024 (d) 2744
Answer : (c)
Explanation : In the given terms, all are the cubes of numbers except 1024.
But
So, odd one is 1024.
Find out the odd number. 2601, 2704, 2809, 2909, 2916 | |||
| Right Option : D | |||
| View Explanation | |||
Find the odd one out. 345, 365, 380, 405 | |||
| Right Option : C | |||
| View Explanation | |||
Find out the odd number. 3, 9, 18, 54, 110, 324, 648 | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
