What will be in the next series
1, 7, 8, 49, 56, 57, 343, ...	Choose the correct choice
A) 223 B) 344 C) 677 D) 297 E) 1291
Ans: 344   1 = 1   7 = 1 x 7   8 = 1 x 7 + 1   49 = 7 x 7 + 1   50 = 7 x 7 + 1   56 = 8 x 7   57 = 8 x 7 + 1   343 = 49 x 7   Next term should be 49 x 7 + 1 = 344   Ans:344
<result>B</result>
What will be in the next series
1, 7, 8, 49, 56, 57, 343, ...