# Classification - Classification MCQ

Instructions:

Certain words/terms are given below in each question. All are similar in nature except one which is different. Pick out the odd one.

1:

36,72,45,38,81

 A. 36 B. 72 C. 81 D. 38 Answer Report Discuss Option: D Explanation : Sum of unit and tens is equal to 9 in all numbers except in 38 which is 3+8=11 Click on Discuss to view users comments. Write your comments here:
2:

121, 169, 289, 81, 361

 A. 81 B. 289 C. 169 D. 121 Answer Report Discuss Option: A Explanation : (11)2=121, (13)2=169, (17)2=289 and (19)2=361 but 81 is the square of 9 which is not a prime number Click on Discuss to view users comments. Write your comments here:
3:

53, 64, 31, 42, 73

 A. 53 B. 64 C. 31 D. 73 Answer Report Discuss Option: D Explanation : 5-3=2, 6-4=2, 3-1=2, 4-2=2 but 7-3 is not equal to 2 Click on Discuss to view users comments. Write your comments here:
4:

8, 27, 81, 1331, 125

 A. 8 B. 27 C. 1331 D. 81 Answer Report Discuss Option: D Explanation : (2)3=8, (3)3=27, (11)3=1331 and (5)3=125 but (3)4=81. Thus 3 does not have a power 4 Click on Discuss to view users comments. Write your comments here:
5:

82, 64, 36, 19, 37

 A. 82 B. 64 C. 36 D. 19 Answer Report Discuss Option: C Explanation : Calculate the mean of unit and tens, i.e., (8+2)/2=5 (6+4)/2=5 (1+9)/2=5 (3+7)/2=5 but(3+6)/2=5 Click on Discuss to view users comments. Write your comments here:

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