SSC CGL (Prelims) Reasoning: Number and Alphabet Series questions with solutions

Q1. What comes next in the sequence: B4, D6, F8, H10, ?

1. I12
2. J12
3. K12
4. L12

Answer: J12

The letters form the sequence B, D, F, H, J by skipping one letter each time. The numbers increase by 2: 4, 6, 8, 10, 12.

Q2. What comes next in the series: F4, H6, J8, L10, ?

1. N12
2. M12
3. O12
4. P12

Answer: N12

The letters progress as F, H, J, L, which are increasing by 2 alphabet positions each time. The numbers progress as 4, 6, 8, 10, increasing by 2, so the next term is N12.

Q3. What comes next in the pattern: F1, I3, L5, O7, ?

1. R9
2. Q9
3. S9
4. P9

Answer: R9

The letters follow the sequence F, I, L, O, R, increasing by 3 positions each time. The numbers follow 1, 3, 5, 7, 9, increasing by 2, so the next term is R9.