# Sequencing Questions and Answers – Set 7

This set of Verbal Reasoning Questions and Answers (MCQs) focuses on “Sequencing – Set 7”.

1. How many even numbers are there in the following series of numbers, each of which is immediately preceded by an odd number, but not immediately followed by an even number?
6 2 8 9 1 3 4 5 7 5 8 6 7 9 3 8 1 5 9 2 6
a) 1
b) 2
c) 3
d) 4

Explanation: Here, we are looking for a group of numbers i.e. odd even odd. In the series it only occurs twice i.e. ‘3 8 1’, ‘3 4 5’.

2. Identify the wrong number in the series. 21, 34, 55, 89, 144, 234, 377?
a) 89
b) 55
c) 234
d) 377

Explanation: Here, the series is a Fibonacci series.
i.e., a number in the series is the sum of previous two numbers.
So, in this 89+144 = 233. So the wrong number is 234.

3. Find the next number in the series: 26, 124, 342, 728, …. ?
a) 1824
b) 1728
c) 1330
d) 1693

Explanation: Here, each number is one less than cube of a number.
i.e., 33=27-1=26, 53=125-1=124, 73=343-1=342, 93=729-1=728.
So, the next number will be 113=1331-1=1330.

4. Ankita’s younger brother Bobby is older than Nilu. Shweta is younger than Rahul but elder than Ankita. If Rahul is younger than Shyam then who is younger than Ankita?
a) Shyam
b) Bobby
c) Rahul
d) Shweta

Explanation: Here, according to question
Nilu < Bobby < Ankita < Shweta < Rahul<Shyam.

5. A box had 17 bulbs. All but five are fused. How many are not fused?
a) 5
b) 13
c) 8
d) 9

Explanation: Here, it is given that all bulbs are fused except 5 i.e. out of 17, 5 bulbs are not fused.

6. Complete the series 129, 342, 564, 465, ?, 921.
a) 286
b) 243
c) 578
d) 462

Explanation: Here, in the series after first three numbers, remaining three numbers are reversed number of previous numbers.

7. Complete the following series 13, 26, 104, 832, 13312 …?
a) 685302
b) 425984
c) 393216
d) 409354

Explanation: Here, the pattern followed is:-
13×2=26, 26×4=104, 104×8=832, 832×16=13312. Similarly, 13312×32=425984.

8. Complete the following series 13, 38, 74, 123, 187…?
a) 110
b) 268
c) 106
d) 382

Explanation: Here, the difference between the digits is the square of digits i.e.
38-13 = 25 = 52, 74-38 = 36 = 62, 123-74 = 49 =72, 187-123 = 64 = 82.
Similarly, 268-187 = 81 = 92

9. Complete the following series 3, 6, 18, 72, 360…?
a) 8249
b) 6825
c) 6480
d) 2843

Explanation: Here, the series follows the following pattern.
9×2=18, 18×3=54, 54×4=216, 216×5=1080.
Similarly, 1080×6=6480.

10. In a row of 19 boys, when Ram shifted three places towards the left, he become 10th from the left end. What was his earlier position form the right end of the row?
a) 4th
b) 7th
c) 6th
d) 5th

Explanation: Here, there are 19 boys and Ram is in 10th position from left end after shifting. i.e. Ram is in 13th position from left before shifting. So 19 – 13 = 6 i.e. there are 6 boys before Ram, so his position was 7th from the right end.