Question

What value should come in place of (?) in the following number series?
19, 33, 62, 121, ?, 479

• A. 240
• B. 220
• C. 200
• D. 180

Answer 1

The Correct Option is A

The given series is: 19, 33, 62, 121, ?, 479. Let's find the pattern:
First, identify the differences between consecutive terms:

• 33 - 19 = 14
• 62 - 33 = 29
• 121 - 62 = 59

Observe the differences: 14, 29, 59
Now, calculate the differences between these consecutive differences:

• 29 - 14 = 15
• 59 - 29 = 30
• The differences are 15, 30

The second set of differences (15, 30) suggests an increasing pattern by doubling: 15 (next = 15 x 2 = 30).The next difference should be 59 + 60 = 119, suggesting an increment of 60 based on the pattern.

Position	Value	Difference	Further Difference
1	19	-	-
2	33	14	-
3	62	29	15
4	121	59	30
5	240 (to find)	119	60

Now calculate: 121 + 119 = 240
This matches the option given as 240.
Therefore, the missing value is 240.