Class 5 Exam > Class 5 Questions > Complete the series: 2, 5, 9, _________, 20, ...
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Complete the series: 2, 5, 9, _________, 20, 27
- a)16
- b)18
- c)24
- d)14
Correct answer is option 'D'. Can you explain this answer?
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Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct...
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Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct...
To find the missing number in the series 2, 5, 9, ____, 20, 27, we need to identify the pattern or rule that governs the sequence.
Pattern:
- The difference between the first two numbers is 5 - 2 = 3.
- The difference between the second and third numbers is 9 - 5 = 4.
- The difference between the third and fourth numbers is 14 - 9 = 5.
- The difference between the fourth and fifth numbers is 20 - 14 = 6.
- The difference between the fifth and sixth numbers is 27 - 20 = 7.
From the pattern, we can observe that the differences between consecutive terms are increasing by 1 each time.
Using this pattern, the difference between the fourth and fifth numbers would be 6 + 1 = 7. Therefore, to find the missing number, we need to add 7 to the fourth number in the series.
Calculations:
- The fourth number is 14.
- Adding 7 to 14, we get 14 + 7 = 21.
Therefore, the missing number in the series is 21.
Conclusion:
The missing number in the series 2, 5, 9, ____, 20, 27 is 21.
Pattern:
- The difference between the first two numbers is 5 - 2 = 3.
- The difference between the second and third numbers is 9 - 5 = 4.
- The difference between the third and fourth numbers is 14 - 9 = 5.
- The difference between the fourth and fifth numbers is 20 - 14 = 6.
- The difference between the fifth and sixth numbers is 27 - 20 = 7.
From the pattern, we can observe that the differences between consecutive terms are increasing by 1 each time.
Using this pattern, the difference between the fourth and fifth numbers would be 6 + 1 = 7. Therefore, to find the missing number, we need to add 7 to the fourth number in the series.
Calculations:
- The fourth number is 14.
- Adding 7 to 14, we get 14 + 7 = 21.
Therefore, the missing number in the series is 21.
Conclusion:
The missing number in the series 2, 5, 9, ____, 20, 27 is 21.
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Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct...
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Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct answer is option 'D'. Can you explain this answer?
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