Solution:Series 1:
Series Pattern Given Series
2544 2544
2544 ÷ 2 − 8 = 1264 1264
1264 ÷ 2 − 8 = 624 624
624 ÷ 2 − 8 = 304 304 I
304 ÷ 2 − 8 = 144 144
144 ÷ 2 − 8 = 64 64 L
64 ÷ 2 − 8 = 24 24
Series 2:
Series Pattern Given Series
7 + 8 = 15 15
8 + 15 = 23 23
23 + 38 = 61 61
38 + 61 = 99 99
61 + 99 = 160 160 M
There must be 7 in place of 5
So J = 5
Series III:
173, 179, 181, 187, 193, N, 199
The series consists of consecutive prime numbers. Consecutive prime numbers from 173
→ 173, 179, 181, 191, 193, 197, 199
191 should be in place of 187.
So K = 187
N = 197
I J K L M N
302 5 187 64 160 197
From the common explanation, we have
Required Percentage = (187 + 5) / 64 × 100% = 300%