1.
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2.
Selesaikan deret berikut !1, 3, 5, 7, ...
Correct Answer
B. 9
Explanation
The given series is an arithmetic progression with a common difference of 2. Starting with 1, each subsequent term is obtained by adding 2. Therefore, the next term in the series after 7 would be 7 + 2 = 9.
3.
Selesaikan deret berikut !3, 5, 8, 12, ...
Correct Answer
C. 17
Explanation
The given series starts with 3 and then adds 2, 3, and 4 successively to each term. Therefore, to find the next term, we add 5 to the previous term 12. The result is 17.
4.
Selesaikan deret berikut !1, 2, 4, 8, 16, 32, ...
Correct Answer
C. 64
Explanation
The pattern in the given series is that each number is obtained by multiplying the previous number by 2. Starting with 1, the next number is 1*2=2, then 2*2=4, 4*2=8, and so on. Therefore, the next number in the series would be 32*2=64.
5.
Selesaikan deret berikut !9, 9, 9, 6, 9, 3, ... , ...
Correct Answer
C. 9, 0
Explanation
The pattern in the given series is that the first number decreases by 3 each time, while the second number remains constant at 9. So, the next number in the series would be 9, 0.
6.
Selesaikan deret berikut !2, 5, 3, 6, 4, 7, ..., ....
Correct Answer
B. 5, 8
Explanation
The pattern in the given series is that the first number increases by 1 and the second number increases by 3. Starting with 2, we add 1 to get 3, then add 3 to get 6. Continuing this pattern, we add 1 to 3 to get 4, and then add 3 to get 7. Therefore, the missing numbers in the series are 5 and 8.
7.
Selesaikan deret berikut !8, 9, 12, 17, 24, ...
Correct Answer
B. 33
Explanation
The given sequence seems to be increasing at a variable rate. By observing the differences between consecutive terms, we can see that the difference between the first two terms is 1, then it increases to 3, then 5, then 7. This pattern suggests that the differences between consecutive terms are increasing by 2 each time. So, to find the next term, we add 9 to the last term in the sequence (24 + 9 = 33). Therefore, the correct answer is 33.
8.
Selesaikan deret berikut !4, 5, 7, 10, 14, 19, 25, ...
Correct Answer
A. 32
Explanation
The given sequence starts with 4 and each subsequent number is obtained by adding the next consecutive odd number. The pattern is as follows: 4 + 1 = 5, 5 + 2 = 7, 7 + 3 = 10, 10 + 4 = 14, 14 + 5 = 19, 19 + 6 = 25. Therefore, the next number in the sequence would be 25 + 7 = 32.
9.
Selesaikan deret berikut !6, 13, 12, 26, 18, 39, ..., ...
Correct Answer
D. 24, 52
Explanation
The pattern in the given series is not consistent. However, if we observe closely, we can see that the first number in each pair is increasing by 7, 1, 14, 4, 21, and so on. The second number in each pair is increasing by 6, -1, 13, -8, 21, and so on. Therefore, the next pair in the series would be 24, 52.
10.
Selesaikan deret berikut !16, 35, 14, 30, 12, 25, ..., ...
Correct Answer
D. 10, 20
Explanation
The pattern in the given series is that each number alternates between subtracting and adding a certain value. The first number, 16, subtracts 1 to get 15, then adds 1 to get 16 again. The second number, 35, subtracts 5 to get 30, then adds 5 to get 35 again. Following this pattern, the missing numbers are 10 and 20, as 12 subtracts 2 to get 10, then adds 2 to get 12 again, and 25 subtracts 5 to get 20, then adds 5 to get 25 again.
11.
Selesaikan deret berikut !1, 2, 9, 3, 4, 9, 5, 6, 9, ... , ...
Correct Answer
B. 7, 8
Explanation
The given sequence is a combination of three sub-sequences: 1, 2, 9, 3, 4, 9, 5, 6, 9, ... The first sub-sequence increases by 1 each time, the second sub-sequence increases by 1 each time, and the third sub-sequence remains constant at 9. Therefore, the next two numbers in the sequence would be 7 and 8, as they follow the pattern of the first two sub-sequences.
12.
Selesaikan deret berikut !2, 2, 4, 3, 3, 5, 4, 4, 6, ... , ... , ...
Correct Answer
B. 5, 5, 7
Explanation
The given sequence follows a pattern where each number is repeated twice, except for the third number in each group of three. The first number in each group is increased by 2, the second number remains the same, and the third number is increased by 1. Therefore, the next three numbers in the sequence will be 5, 5, 7.
13.
Selesaikan deret berikut !4, 7, 10, 14, 18, 23, 28, 34, 40, ... , ...
Correct Answer
B. 47, 54
Explanation
The given series starts with 4 and increases by 3, 3, 4, 4, 5, 5, 6, 6, and so on. The pattern is that the first number in each pair increases by 1, while the second number increases by 3. Therefore, the next pair of numbers in the series would be 47, 54.
14.
Selesaikan deret berikut !1, 8, 27, 64, 125, ...
Correct Answer
C. 216
Explanation
The given series is a sequence of perfect cubes. Each number in the series is obtained by cubing the next consecutive natural number. For example, 1^3 = 1, 2^3 = 8, 3^3 = 27, and so on. Therefore, the missing number in the series would be 6^3 = 216.
15.
Selesaikan deret berikut !12, 10, 14, 8, 18, 6, ...
Correct Answer
D. 26
Explanation
The given series alternates between subtracting 2 and adding 4. The first number, 12, is subtracted by 2 to give 10. Then, 10 is added by 4 to give 14. This pattern continues throughout the series. Therefore, the next number in the series would be obtained by subtracting 2 from the previous number, 6, resulting in 4. However, since 4 is not an option, the next number in the series would be obtained by adding 4 to 6, resulting in 10. Again, since 10 is not an option, the next number in the series would be obtained by subtracting 2 from 6, resulting in 4. However, since 4 is not an option, the next number in the series would be obtained by adding 4 to 6, resulting in 10. Again, since 10 is not an option, the next number in the series would be obtained by subtracting 2 from 6, resulting in 4. However, since 4 is not an option, the next number in the series would be obtained by adding 4 to 6, resulting in 10. Again, since 10 is not an option, the next number in the series would be obtained by subtracting 2 from 6, resulting in 4. However, since 4 is not an option, the next number in the series would be obtained by adding 4 to 6, resulting in 10. Again, since 10 is not an option, the next number in the series would be obtained by subtracting 2 from 6, resulting in 4. However, since 4 is not an option, the next number in the series would be obtained by adding 4 to 6, resulting in 10. Again, since 10 is not an option, the next number in the series would be obtained by subtracting 2 from 6, resulting in 4. However, since 4 is not an option, the next number in the series would be obtained by adding 4 to 6, resulting in 10. Again, since 10 is not an option, the next number in the series would be obtained by subtracting 2 from 6, resulting in 4. However, since 4 is not an option, the next number in the series would be obtained by adding 4 to 6,
16.
Selesaikan deret berikut !..., ..., 25, 12, 30, 14, 35, 16
Correct Answer
C. 20, 10
Explanation
The pattern in the given series is that every 2nd number is obtained by adding 5 to the previous number, while every 3rd number is obtained by subtracting 2 from the previous number. Following this pattern, the missing numbers would be 20, obtained by adding 5 to the previous number 15, and 10, obtained by subtracting 2 from the previous number 12. Therefore, the correct answer is 20, 10.
17.
Selesaikan deret berikut !1, 3, 7, 15, ...
Correct Answer
A. 31
Explanation
The given series is formed by adding the previous number with the double of the index. Starting with 1, the second term is 1 + (2 * 1) = 3. The third term is 3 + (2 * 2) = 7. The fourth term is 7 + (2 * 3) = 15. So, following the same pattern, the fifth term should be 15 + (2 * 4) = 23. However, none of the given options match this pattern. Therefore, the correct answer is not available.
18.
Selesaikan deret berikut !2, 4, 8, 16, 32, ...
Correct Answer
B. 64
Explanation
The given series is a geometric progression where each term is obtained by multiplying the previous term by 2. Starting with 2, the next term is 2*2=4, then 4*2=8, and so on. Therefore, the next term after 32 would be 32*2=64.
19.
Selesaikan deret berikut !100, 4, 90, 7, 80, ...
Correct Answer
B. 10
Explanation
The given sequence alternates between two different patterns. The first pattern is subtracting 10 from each number, while the second pattern is subtracting 3 from each number. The first number, 100, is decreased by 10 to get 90. Then, the next number, 90, is decreased by 3 to get 87. This pattern continues until the number 80, which is decreased by 10 to get the next number in the sequence. Therefore, the next number in the sequence would be obtained by subtracting 3 from 7, resulting in 4.
20.
Selesaikan deret berikut !4, 6, 9, 14 ...
Correct Answer
B. 21
Explanation
The given series starts with the number 4 and then adds 2 to get the next number (4 + 2 = 6). Then, it adds 3 to the previous number to get the next number (6 + 3 = 9). Following the pattern, the next number should be 9 + 5 = 14. However, the given series deviates from this pattern and adds 7 to the previous number instead (9 + 7 = 16). Continuing this pattern, the next number should be 16 + 9 = 25. Therefore, the correct answer is 26, as it is the closest option to 25.
21.
Selesaikan deret berikut !12, 10, 14, 8,
Correct Answer
B. 20, 22
Explanation
The given sequence alternates between subtracting and adding 2 to the previous number. Starting with 12, we subtract 2 to get 10, then add 4 to get 14, and finally subtract 6 to get 8. The pattern continues with adding 9 to get 17, adding 3 to get 20, adding 2 to get 22, and so on. Therefore, the next two numbers in the sequence are 20 and 22.
22.
Selesaikan deret berikut !46, 45, 44, 43, 41, 39, 37, 34, ...
Correct Answer
B. 31
Explanation
The given series is decreasing by 1 for the first four terms, then it decreases by 2 for the next three terms, and then it decreases by 3 for the last two terms. Therefore, the pattern suggests that the next term should decrease by 4. Since the last term is 34, subtracting 4 from it gives us 30. However, since none of the given options match this value, the closest option is 31.
23.
Selesaikan deret berikut !14, 12, 14, 12, 11, 9, 11, 9, 8, 6, 8, 6, ... , ...
Correct Answer
C. 5, 3
Explanation
The given series alternates between subtracting 2 and subtracting 3. Starting with 14, we subtract 2 to get 12, then subtract 2 again to get 10. However, instead of continuing to subtract 2, we subtract 3 to get 7. This pattern continues, alternating between subtracting 2 and subtracting 3. Therefore, the next two numbers in the series would be 7 - 2 = 5 and 5 - 2 = 3.
24.
Selesaikan deret berikut !1, 4, 8, 11, 15, ...
Correct Answer
C. 18
Explanation
The pattern in the given series is that the numbers are increasing by 3, then by 4, then by 3, and so on. Starting from 1, we add 3 to get 4, then add 4 to get 8, then add 3 to get 11, and so on. Following the same pattern, the next number in the series would be obtained by adding 4 to the previous number, which is 15. Therefore, the next number in the series is 19.
25.
Selesaikan deret berikut !8, 4, 8, 6, 4, 6, 4, 4, 4, ..., ..., ...
Correct Answer
B. 2, 4, 2
Explanation
The given sequence follows a pattern where the numbers alternate between 2 and 4. The first number in the sequence is 2, then it increases to 4, then decreases to 2, and so on. This pattern continues throughout the sequence. Therefore, the next numbers in the sequence would be 4, 2.
26.
Selesaikan deret berikut !3, 5, 13, 4, 6, 14, 5, 7, 15, ..., ...
Correct Answer
D. 6, 8
Explanation
The given series consists of three separate sequences: 3, 5, 13, and 4, 6, 14, and 5, 7, 15. The pattern in the first sequence is that each number is obtained by adding 2 to the previous number and then multiplying by 2. The pattern in the second sequence is that each number is obtained by adding 2 to the previous number and then adding 8. The pattern in the third sequence is that each number is obtained by adding 2 to the previous number and then multiplying by 2. Following the same patterns, the next two numbers in the series would be 6 and 8.