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Directions for questions: Based on the series of numbers given in the question, find the next / missing number in the series.
81, 100, 121, 144, ?
  • a)
    159
  • b)
    169
  • c)
    150 
  • d)
    196
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Directions for questions:Based on the series of numbers given in the q...
The given series is set of perfect squares starting from 9.
Hence last term will be 132 = 169. 
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Directions for questions:Based on the series of numbers given in the q...
Identifying the Pattern:
The given series is: 81, 100, 121, 144, ?

Finding the Pattern:
To find the pattern in the series, we need to look at the differences between consecutive numbers.
- The difference between 100 and 81 is 19 (100 - 81 = 19).
- The difference between 121 and 100 is 21 (121 - 100 = 21).
- The difference between 144 and 121 is 23 (144 - 121 = 23).

Applying the Pattern:
Now, to find the next number in the series, we need to add the next increasing odd number to the previous difference.
- The next odd number after 23 is 25.
- Adding 25 to the last number in the series (144) gives us the next number in the series: 144 + 25 = 169.
Therefore, the missing number in the series is 169, which corresponds to option 'B'.
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Community Answer
Directions for questions:Based on the series of numbers given in the q...
13 square is 169
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Directions for questions:Based on the series of numbers given in the question, find the next / missing number in the series.81, 100, 121, 144, ?a)159b)169c)150d)196Correct answer is option 'B'. Can you explain this answer?
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