alphanumeric series Model Questions & Answers, Practice Test for ibps clerk prelims

Answer: (c)

Answer: (d)

Answer: (c)

The series progress with a difference of – 5.

Answer: (e)

The series is based on following pattern:

8 × 0.5 = 4,

4 × 1.5 = 6,

6 × 2.5 = 15,

15 × 3.5 = 52.6,

52.5 × 4.5 = 236.25

Similarly,

4 × 0.5 = 2 .... (1)

2 × 1.5 = 3 .... (2)

3 × 2.5 = 7.5 .... (3)

7.5 × 3.5 = 26.25 . ...(4)

Therefore, the number 26.25 will come in place of (4)

Answer: (d)

The series is based on following pattern:

2 × 1 + 1² = 3

3 × 2 + 2² = 10

10 × 3 + 3² = 39

39 × 4 + 4² = 172

172 × 5 + 5² = 885

Similarly, the new series is as follows:

1 × 1 + 1² = 2 ....(1)

2 × 2 + 2² = 8 .....(2)

8 × 3 + 3² = 33 ... (3)

Therefore, the number 8 will come in place of (2).