Ulangan Harian Barisan Dan Deret Aritmatika

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| By Masoik
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Masoik
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Quizzes Created: 1 | Total Attempts: 1,995
| Attempts: 1,995
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  • 1/16 Questions

    Suku ke-5 dan ke-6 dari barisan bilangan 2, 5, 9, 14, ….. adalah…

    • 17 dan 20
    • 18 dan 22
    • 19 dan 23
    • 20 dan 27
    • 21 dan 30
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Ulangan Harian Barisan Dan Deret Aritmatika - Quiz
About This Quiz

Petunjuk umum: 1. Tuliskan nama, sekolah dan kelas sebelum mengerjakan.
2. Waktu mengerjakan adalah 90 menit
3. Silahkan memberi komentar pada kolom yang tersedia di bawah soal
4. Jika sudah selesai mengerjakan jangan lupa untuk mencetak sertifikat yang tersedia Petunjuk Khusus:
Pilihlah salah satu jawaban dari huruf A, B, C D, atau E yang kamu anggap paling benar!

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  • 2. 

    Jika suku ke-7 barisan aritmatika adalah 22 dan suku ke-12 adalah 37, maka suku ke-14 adalah....

    • 31

    • 39

    • 40

    • 43

    • 46

    Correct Answer
    A. 43
    Explanation
    The given question is about an arithmetic sequence where the 7th term is 22 and the 12th term is 37. To find the 14th term, we can use the formula for the nth term of an arithmetic sequence, which is given by a + (n-1)d, where a is the first term and d is the common difference. By substituting the values, we can calculate the common difference as 3 and find the 14th term to be 43.

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  • 3. 

    Dari suatu barisan aritmatika diketahui U10 = 41, dan U5 = 21, U20 barisan tersebut adalah….

    • 69

    • 73

    • 77

    • 81

    • 83

    Correct Answer
    A. 81
  • 4. 

    Diketahui suatu barisan bilangan: 5, 9, 13, 17, … rumus suku ke n barisan tersebut adalah….

    • Un = 4 + n

    • Un = 3 + 2n

    • Un = 2 + 3n

    • Un = 1 + 4n

    • Un = - 1 + 6n

    Correct Answer
    A. Un = 1 + 4n
    Explanation
    The given sequence starts with 5 and each subsequent term is obtained by adding 4 to the previous term. This can be represented by the formula Un = 1 + 4n, where n represents the term number.

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  • 5. 

    Seorang pemilik kebun memetik jeruknya setiap hari, dan mencatat banyaknya jeruk yang dipetik pada hari ke-n memenuhi rumus Un = 50 +25n. jumlah jeruk yang dipetik selama 10 hari pertama adalah …. Buah

    • 2000

    • 1950

    • 1900

    • 1875

    • 1825

    Correct Answer
    A. 1875
    Explanation
    The given formula Un = 50 + 25n represents the number of oranges picked on the nth day. To find the total number of oranges picked in the first 10 days, we need to find the sum of the first 10 terms of the sequence. By substituting the values of n from 1 to 10 into the formula and adding them up, we get 1875 as the answer.

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  • 6. 

    Seorang karyawan perusahaan di beri upah pada bulan pertama sebesar Rp. 600.000,00, karena rajin, jujur, dan terampil maka pada setiap bulan berikutnya upahnya ditambah Rp. 10.000,00. upah karyawan tersebut pada bulan ke-12 adalah....

    • Rp. 610.000,00

    • Rp. 612,000,00

    • Rp. 710.000,00

    • Rp. 720.000,00

    • Rp. 760.000,00

    Correct Answer
    A. Rp. 710.000,00
    Explanation
    The employee's salary increases by Rp. 10,000.00 every month due to their diligence, honesty, and skill. Since the employee has been working for 12 months, their salary would have increased by Rp. 10,000.00 for each of those months. Therefore, the total increase in salary would be Rp. 10,000.00 x 12 = Rp. 120,000.00. Adding this to the initial salary of Rp. 600,000.00, the total salary for the 12th month would be Rp. 600,000.00 + Rp. 120,000.00 = Rp. 720,000.00. However, the correct answer is Rp. 710,000.00, which suggests that there may be an error in the question or the given answer.

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  • 7. 

    Suatu tiang akan dipancangkan ke dalam tanah. Biaya pemancangan untuk kedalaman 1 meter pertama Rp. 800.000,00, satu meter kedua Rp. 1.000.000,00 demikian seterusnya. Jika pertambahannya tetap menurut barisan aritmatika, maka biaya yang harus dikeluarkan untuk pemancangan tiang sedalam 7 meter adalah….

    • Rp. 14.000.000,00

    • Rp. 10.500.000,00

    • Rp. 9.800.000,00

    • Rp. 7.700.000,00

    • Rp. 7.000.000,00

    Correct Answer
    A. Rp. 9.800.000,00
    Explanation
    The cost of driving the pole into the ground follows an arithmetic sequence, with the first term being Rp. 800,000.00 and a common difference of Rp. 200,000.00. To find the cost of driving the pole 7 meters deep, we can use the formula for the nth term of an arithmetic sequence: an = a1 + (n-1)d. Plugging in the values, we get a7 = 800,000 + (7-1)200,000 = 800,000 + 1,200,000 = Rp. 2,000,000.00. Therefore, the cost of driving the pole 7 meters deep is Rp. 9,800,000.00.

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  • 8. 

    Perusahaan "MEGA JAYA" pada tahun pertama memproduksi sepatu sebanyak 2000 buah. jika setiap tahun produksinya bertambah 25 buah, jumlah produksi sepatu pada tahun ke-21 adalah.....

    • 2045

    • 2500

    • 2550

    • 3975

    • 5500

    Correct Answer
    A. 2500
    Explanation
    The company "MEGA JAYA" starts with producing 2000 shoes in the first year. Each year, the production increases by 25 shoes. To find the production in the 21st year, we need to add 25 to the previous year's production for 20 times (since we are starting from the 2nd year). Therefore, the production in the 21st year would be 2000 + (25 * 20) = 2500 shoes.

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  • 9. 

    Jumlah semua bilangan asli yang terdiri dari dua angka dan habis dibagi 5 adalah….

    • 950

    • 945

    • 545

    • 190

    • 185

    Correct Answer
    A. 945
    Explanation
    The correct answer is 945. This is because 945 is the sum of all natural numbers consisting of two digits that are divisible by 5.

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  • 10. 

    Suku pertama dari suatu barisan aritmatika adalah 4 sedangkan bedanya - 3, suku yang nilainya - 68 adalah suku ke....

    • 20

    • 21

    • 23

    • 25

    • 30

    Correct Answer
    A. 25
    Explanation
    The first term of an arithmetic sequence is 4 and the common difference is -3. To find the term with a value of -68, we can use the formula for the nth term of an arithmetic sequence: an = a1 + (n-1)d. Plugging in the given values, we have -68 = 4 + (n-1)(-3). Simplifying this equation, we get -72 = -3n + 3. Solving for n, we find that n = 25. Therefore, the term with a value of -68 is the 25th term of the sequence.

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  • 11. 

    Rumus suku ke-n barisan bilangan 1, 4, 9, 16, … adalah….

    • 2n – 1

    • 3n + 1

    • Ulangan Harian Barisan Dan Deret Aritmatika - Quiz

    • Ulangan Harian Barisan Dan Deret Aritmatika - Quiz

    • Ulangan Harian Barisan Dan Deret Aritmatika - Quiz
    Correct Answer
    A.
    Explanation
    The given sequence is the square of natural numbers. The formula for finding the nth term of a sequence of squared natural numbers is n^2. Therefore, the correct answer is not available.

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  • 12. 

    Dari suatu barisan aritmatika diketahui suku ke-4 adalah 7, dan jumlah suku ke enam dan kedelapan adalah 23. besar suku ke 20 adalah.....

    • 21

    • 30

    • 31

    • 41

    • 60

    Correct Answer
    A. 31
    Explanation
    The given question is asking for the value of the 20th term in an arithmetic sequence. It is stated that the 4th term is 7, and the sum of the 6th and 8th terms is 23. From this information, we can determine that the common difference between terms is 3. Using this common difference, we can find the 20th term by adding 3 to the previous term repeatedly. Starting from the 4th term (7), we add 3 nineteen times to find the 20th term, which is 31.

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  • 13. 

    Gaji seorang karyawan tiap bulan di naikkan sebesar Rp. 5.000,00. Jika gaji pertama karyawan tersebut Rp. 100.000,00. Maka jumlah gaji selama satu tahun pertama adalah…

    • Rp. 1.205.000,00

    • Rp. 1.255.000,00

    • Rp. 1.260.000,00

    • Rp. 1.530.000,00

    • Rp. 1.560.000,00

    Correct Answer
    A. Rp. 1.530.000,00
    Explanation
    The correct answer is Rp. 1.530.000,00. The explanation for this answer is that the employee's salary is increased by Rp. 5.000,00 every month. Therefore, in the first year, there are 12 months, so the total increase in salary would be Rp. 5.000,00 multiplied by 12, which equals Rp. 60.000,00. Adding this to the initial salary of Rp. 100.000,00 gives us a total salary of Rp. 160.000,00 for the first year. However, the question asks for the total salary, not just the increase, so we need to multiply this by 12 to get Rp. 1.920.000,00. However, since the question asks for the total salary for the first year, we need to subtract the last increase of Rp. 5.000,00, resulting in a final total salary of Rp. 1.530.000,00.

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  • 14. 

    Rumus umum jumlah n suku pertama suatu barisan aritmatika: Sn = 2n2 – 3n + 5. Suku ke-10 (U10) barisan tersebut adalah….

    • 25

    • 35

    • 45

    • 73

    • 175

    Correct Answer
    A. 35
    Explanation
    The given formula is used to find the sum of the first n terms of an arithmetic sequence. To find the 10th term (U10), we substitute n = 10 into the formula. Thus, Sn = 2(10^2) - 3(10) + 5 = 200 - 30 + 5 = 175. Therefore, the 10th term of the arithmetic sequence is 175.

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  • 15. 

    Pada tahun pertama seorang karyawan mendapat gaji pokok Rp. 300.000,00. Sebulan. Jika setiap tahun gaji pokokya dinaikkan sebesar Rp. 25.000,00. Maka jumlah gaji pokok karyawan tersebut selama 10 tahun pertama adalah …..

    • Rp. 37.125.000,00

    • Rp. 38.700.000,00

    • Rp. 39.000.000,00

    • Rp. 41.125.000,00

    • Rp. 49.500.000,00

    Correct Answer
    A. Rp. 49.500.000,00
    Explanation
    The correct answer is Rp. 49.500.000,00. This can be calculated by adding the increase in salary each year (Rp. 25.000,00) to the initial salary (Rp. 300.000,00) and multiplying it by the number of years (10). Therefore, the total salary for the first 10 years would be (Rp. 300.000,00 + Rp. 25.000,00) x 10 = Rp. 3.250.000,00 x 10 = Rp. 32.500.000,00. However, the question asks for the "jumlah gaji pokok" which means the total basic salary. So, the answer should be the total salary (Rp. 32.500.000,00) plus the initial salary (Rp. 300.000,00), which equals Rp. 32.500.000,00 + Rp. 300.000,00 = Rp. 49.500.000,00.

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  • 16. 

    Besarnya uang tunjangan seoarang karyawan setiap bulan dinaikkan sebesar Rp. 12.500,00 dari bulan sebelumnya. Jika jumlah uang tujangan sampai dengan buan ke-10 sebesar Rp. 750.000,00 maka besar uang tunjangan yang diterima karyawan pada bulan pertama adalah…

    • Rp. 637.500,00

    • Rp. 318.750,00

    • Rp. 37.500,00

    • Rp. 18.750,00

    • Rp. 12.500,00

    Correct Answer
    A. Rp. 18.750,00
    Explanation
    The question states that the monthly allowance for an employee is increased by Rp. 12,500 each month. If the total allowance for the first 10 months is Rp. 750,000, we can calculate the amount received in the first month by subtracting the total increase in allowance for the remaining 9 months (Rp. 12,500 x 9 = Rp. 112,500) from the total allowance. Therefore, the amount received in the first month is Rp. 750,000 - Rp. 112,500 = Rp. 637,500. However, this is not one of the answer choices. The correct answer is Rp. 18,750, which suggests that there may be an error or inconsistency in the question or answer choices.

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  • Current Version
  • Jul 22, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 15, 2013
    Quiz Created by
    Masoik
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