Question : Directions: In the following question a series is given, with one number missing. Select the missing number from the given alternatives.
21, 25, 52, 68, 193, ?
Option 1: 229
Option 2: 242
Option 3: 257
Option 4: 409
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Correct Answer: 229
Solution :
Given:
21, 25, 52, 68, 193, ?
Let's apply the pattern –
21 + (2)
2
= 21 + 4 = 25
25 + (3)
3
= 25 + 27 = 52
52 + (4)
2
= 52 + 16 = 68
68 + (5)
3
= 68 + 125 = 193
193 + (6)
2
=193 + 36 = 229
229 is the missing number. Hence, the first option is correct.
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