


16. Find the odd man out. $1,16,81,255,625,1296$ | |
A. $1296$ | B. $81$ |
C. $1$ | D. $255$ |
Discuss |
Answer: Option D
Explanation:
The pattern is $1^4,2^4,3^4,4^4,5^4,6^4$
But $255$ is given in place of $4^4$
17. Find the odd man out. $6,13,18,25,30,37,40$ | |
A. $25$ | B. $30$ |
C. $37$ | D. $40$ |
Discuss |
Answer: Option D
Explanation:
The difference between two successive terms from beginning are $7,5,7,5,7,5$
Hence, in place of $40,$ right number is $37+5=42$
18. Find the odd man out. $445,221,109,46,25,11,4$ | |
A. $221$ | B. $25$ |
C. $46$ | D. $109$ |
Discuss |
Answer: Option C
Explanation:
$\dfrac{445-3}{2}=221\\\dfrac{221-3}{2}=109\\\dfrac{109-3}{2}=53\\\dfrac{53-3}{2}=25\\\dfrac{25-3}{2}=11\\\dfrac{11-3}{2}=4$
Therefore, $53$ should have come in place of $46$
19. Find the odd man out. $1050,510,242,106,46,16,3$ | |
A. $510$ | B. $1050$ |
C. $106$ | D. $46$ |
Discuss |
Answer: Option C
Explanation:
$\dfrac{1050-30}{2}=510\\\dfrac{510-26}{2}=242\\\dfrac{242-22}{2}=110\\\dfrac{110-18}{2}=46\\\dfrac{46-14}{2}=16\\\dfrac{16-10}{2}=3$
Therefore, $110$ should have come in place of $106$
20. Find the odd man out. $2,3,5,9,12,17,23$ | |
A. $12$ | B. $2$ |
C. $23$ | D. $9$ |
Discuss |
Answer: Option D
Explanation:
$2+1=3\\3+2=5\\5+3=8\\8+4=12\\12+5=17\\17+6=23$
Therefore, $8$ should have come in place of $9$