Verbal Reasoning - Series Completion - Discussion
Discussion Forum : Series Completion - Section 1 (Q.No. 14)
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
14.
6, 12, 21, ?, 48
Answer: Option
Explanation:
The pattern is + 6, + 9, + 12, + 15, .....
So, missing term = 21 + 12 = 33.
Discussion:
6 comments Page 1 of 1.
Eva said:
1 decade ago
2*3=6
4*3=12
7*3=21
11*3=33
16*3=48
22*3=66
Gap between the first term is 2, 2+2=4, 4+3=7, 7+4=11, 11+5=16, 16+6=22...
4*3=12
7*3=21
11*3=33
16*3=48
22*3=66
Gap between the first term is 2, 2+2=4, 4+3=7, 7+4=11, 11+5=16, 16+6=22...
Meharun said:
1 decade ago
I couldn't understood clearly please explain as soon as possible.
Tarkeshwar said:
1 decade ago
6+6 = 12.
12+9 = 21.
21+12 = 33.
33+15 = 48.
12+9 = 21.
21+12 = 33.
33+15 = 48.
(4)
Chaitanya said:
10 years ago
Hi @Eva.
How it come 2, 2+2 = 4 after that you suddenly taken 4+3, I couldn't understand properly could you please explain it again.
How it come 2, 2+2 = 4 after that you suddenly taken 4+3, I couldn't understand properly could you please explain it again.
Saikrishna said:
5 years ago
How 15 came? Please explain.
Mighty raju said:
9 months ago
To solve this sequence, let’s identify the pattern between the numbers:
1. **6 to 12:** The difference is \( 12 - 6 = 6 \).
2. **12 to 21:** The difference is \( 21 - 12 = 9 \).
3. **21 to ?:** The difference increases by 3 each time, so the next difference is \( 9 + 3 = 12 \).
- \( 21 + 12 = 33 \).
4. **33 to 48:** The difference is \( 48 - 33 = 15 \), confirming the increasing difference pattern (\( 6, 9, 12, 15 \)).
Thus, the missing number is **33**.
1. **6 to 12:** The difference is \( 12 - 6 = 6 \).
2. **12 to 21:** The difference is \( 21 - 12 = 9 \).
3. **21 to ?:** The difference increases by 3 each time, so the next difference is \( 9 + 3 = 12 \).
- \( 21 + 12 = 33 \).
4. **33 to 48:** The difference is \( 48 - 33 = 15 \), confirming the increasing difference pattern (\( 6, 9, 12, 15 \)).
Thus, the missing number is **33**.
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