Reasoning-Number Series
Complete the following series 225,224,____,222,221 a)220 b)223 c)219 d)226 Answer: b) 2. 17,19,23,29,31,37,______ a)41 b)43 c)40 d)42 Answer: If you look at the above series they are all prime numbers, next series will be 41 3.225,196,169,____,121,100,81 a)156 b)144 c)136 d)125 Answer: above series can be written as 15^2,14^2,13^2,____,11^2,10^2,9^2. The missing series is 12^2=144. 4.12,14,15,16,18,20 a)22 b)25 c)21 d)23 Answer: consider above series into two alternate parts. Like 12,15,18,____ & 14,16,20. Then the difference of two alternate series as follows: 3,3,3___ & 2,4. Next series after 18 need to be added with 3= 18+3=21. 5.64,125,216,343,__ a)64 b)424 c)317 d)512 Answer: The above series can be written, 4^3,5^3,6^3,7^3, then the next
Comments
Post a Comment