Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
164, 172, 145, ?, 84
Option 1: 209
Option 2: 308
Option 3: 283
Option 4: 234
Answer (1)
25th Jan, 2024
Correct Answer: 209
Solution :
Given:
164, 172, 145, ?, 84
Add and subtract the cube of the consecutive natural numbers (starting from 2) alternatively from the previous term to get the next term in the series.
So, 209 is the missing term in the series. Hence, the first option is correct.
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