## Sequence and Series Questions and Answers Part-1

1. 0, 3, 8, 15, 24, 35, 48, ?
a) 53
b) 63
c) 80
d) none of these

Explanation: The series is following the pattern +3, +5, +7, +9, +11, +13 and hence the next term should be 48 + 15 = 63. Answer is option (b).

2. 256, 64, 16, 4, ?
a) 1
b) 1/4
c) 1/16
d) none of these

Explanation: The given series is a GP with common ratio 1/4. Hence, option (a) is correct.

3. Obtain the missing term
B, G, K, ?
a) N
b) P
c) M
d) L

Explanation: The series is defined by the 2nd , 7th , 11th term of the alphabet. Hence, the next term would be the 14th term i.e., N.
Option (a) is the correct answer.

4. 7,15, 27, ?, 63
a) 42
b) 43
c) 38
d) none of these

Explanation: The series follows a pattern of +8, +12, +__, +20. Obviously we need to add 16 for the missing term. Hence, 43 i.e., option (b) is the correct answer

5. ?, 425, 600, 825, 1100, 1425
a) 225
b) 300
c) 250
d) none of these

Explanation: The series follows a pattern of +175, +225, +275, +325. Hence, the first term should be 300, so the answer is option (b).

6. 1, 121, 12321, 1234321, ___?
a) 123454321
b) 12344321
c) 12345654321
d) none of these

Explanation: The series is representing the values of 12, 112, 1112, 11112. Hence, the next value would be 111112 = 123454321, so option (a) is the answer

7. 0.005, 0.05, ?, 5
a) 5.50
b) 0.05
c) 0.5
d) none of these

Explanation: A GP with common ratio 10. Hence, the missing term will be 0.5 i.e., option (c)

8. 31, 32, 36, 45, ?
a) 55
b) 56
c) 61
d) 62

Explanation: +1, +4, +9, thus +16 and hence the next term should be 61. Correct answer is option (c)

9. 1, 5, 2, 25, 3, 125, 4, ?
a) 144
b) 36
c) 625
d) 500