Bilangan Bulat Dan Pecahan

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| By Ekamdt
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Quizzes Created: 1 | Total Attempts: 2,592
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Bilangan Bulat Dan Pecahan - Quiz


Questions and Answers
  • 1. 

    Hasil dari (-12) : 3 + (-8) x (-5) adalah ....

    • A.

      -44

    • B.

      -36

    • C.

      36

    • D.

      44

    Correct Answer
    C. 36
    Explanation
    The expression (-12) : 3 + (-8) x (-5) can be solved using the order of operations (PEMDAS/BODMAS). First, we perform the multiplication: (-8) x (-5) = 40. Then, we divide -12 by 3, which gives us -4. Finally, we add -4 and 40 to get 36. Therefore, the correct answer is 36.

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  • 2. 

    Hasil dari 24 - 8 : (-2) x 5 adalah ....

    • A.

      -44

    • B.

      -40

    • C.

      40

    • D.

      44

    Correct Answer
    D. 44
    Explanation
    The given expression is 24 - 8 : (-2) x 5. According to the order of operations (PEMDAS/BODMAS), we should first perform the division and multiplication from left to right. So, 8 divided by -2 is -4, and then -4 multiplied by 5 is -20. Finally, we subtract 20 from 24, which gives us a result of 4. Therefore, the correct answer is 4.

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  • 3. 

    Suatu udara di suatu wilayah Eropa ketika musim dingin -15o Celcius, dan menjelang musim semi suhu udara naik menjadi  -4o Celsius. Selisih suhu pada kedua musim tersebut adalah ....

    • A.

      19

    • B.

      11

    • C.

      -11

    • D.

      -5

    Correct Answer
    B. 11
    Explanation
    The given question states that the temperature in a certain European region is -15o Celsius during winter and rises to -4o Celsius during spring. To find the temperature difference between the two seasons, we subtract the winter temperature from the spring temperature: -4o Celsius - (-15o Celsius) = -4o Celsius + 15o Celsius = 11o Celsius. Therefore, the temperature difference between the two seasons is 11o Celsius.

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  • 4. 

    Suhu udaha di suatu tempat pada siang hari 16o C. Jika pada malam hari suhunya turun 20oC, maka suhu tempat itu pada malam hari adalah ....

    • A.

      -36oC

    • B.

      -4oC

    • C.

      4oC

    • D.

      36oC

    Correct Answer
    B. -4oC
    Explanation
    During the day, the temperature is 16oC. If the temperature drops 20oC at night, it means that the temperature is decreasing. Therefore, we need to subtract 20 from the initial temperature of 16oC. 16 - 20 = -4oC. So, the temperature at night is -4oC.

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  • 5. 

    Suhu udara di Roma 6oC sedangkan suhu udara di Amsterdam 8oC lebih rendah dibandingkan sihu udara di Roma, maka suhu udara di Amsterdam adalah ....

    • A.

      14oC

    • B.

      2oC

    • C.

      -2oC

    • D.

      -14oC

    Correct Answer
    C. -2oC
    Explanation
    The question states that the temperature in Rome is 6oC, while the temperature in Amsterdam is lower than the temperature in Rome. Therefore, we can conclude that the temperature in Amsterdam is lower than 6oC. The answer of -2oC indicates a temperature that is 2 degrees lower than 6oC, which fits the given information.

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  • 6. 

    Suhu di tempat A adalah 10oC di bawah nol, suhu tempat B adalah 20oC di atas nol, dan suhu di tempat C adalah tepat di antara suhu tempat B. suhu tempat C adalah ....

    • A.

      -15oC

    • B.

      -5oC

    • C.

      5oC

    • D.

      15oC

    Correct Answer
    C. 5oC
    Explanation
    The temperature at place C is 5oC because it is stated that the temperature at place A is 10oC below zero and the temperature at place B is 20oC above zero. Since place C is stated to be in between the temperatures of A and B, it can be inferred that the temperature at place C is 5oC.

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  • 7. 

    Suhu di dalam kulkas -9oC. Setelah dimatikan, setiap 5 menit suhunya naik 4oC. Suhu dalam kulkas itu setelah 2 menit adalah ....

    • A.

      -3oC

    • B.

      3oC

    • C.

      7oC

    • D.

      11oC

    Correct Answer
    C. 7oC
    Explanation
    After the refrigerator is turned off, the temperature inside increases by 4oC every 5 minutes. Therefore, after 2 minutes, the temperature would have increased by (2/5) * 4oC = 1.6oC. Starting from -9oC, the temperature would then be -9oC + 1.6oC = -7.4oC. Since the temperature is given in whole numbers, it would be rounded to the nearest whole number, which is -7oC. Therefore, the correct answer is 7oC.

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  • 8. 

    Suhu udara di kota Tokyo 25oC. Pada saat hujan salju suhunya turun 3oC setiap 15 menit. Suhu udara di kota Tokyo setelah hujan salju selam 1 jam adalah ....

    • A.

      27oC

    • B.

      22oC

    • C.

      13oC

    • D.

      10oC

    Correct Answer
    C. 13oC
    Explanation
    The initial temperature in Tokyo is 25oC. The temperature decreases by 3oC every 15 minutes during the snowfall. To find the temperature after 1 hour (60 minutes), we need to divide 60 by 15 to determine the number of 15-minute intervals. 60 divided by 15 equals 4. Therefore, the temperature decreases by 3oC four times, resulting in a total decrease of 12oC. Subtracting 12oC from the initial temperature of 25oC gives us a final temperature of 13oC.

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  • 9. 

    Di suatu daerah yang berada pada ketinggian 3500 meter di atas permukaan laut suhunya -8oC. Jika setiap naik 100 meter suhu bertambah 1oc, maka suhu di ketinggian 400 meter di atas permukaan laut adalah ....

    • A.

      22oC

    • B.

      23oC

    • C.

      24oC

    • D.

      25oC

    Correct Answer
    A. 22oC
    Explanation
    At the given location, the temperature decreases by 1 degree Celsius for every 100 meters of altitude gained. Since the starting temperature is -8oC and the altitude difference between 3500 meters and 400 meters is 3100 meters, we can calculate the temperature change by dividing the altitude difference by 100 and multiplying it by -1. So, the temperature change is 3100/100 * -1 = -31 degrees Celsius. Subtracting this temperature change from the starting temperature of -8oC gives us the temperature at 400 meters above sea level, which is -8oC - 31oC = -39oC. However, the answer choices given are in positive degrees Celsius, so we take the absolute value of -39oC, which is 39oC. Therefore, the correct answer is 22oC.

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  • 10. 

    Pada lomba matematika ditentukan jawaban yang benar mendapat skor 2, jawaban salah mendapat skor -1, sedangkan bila tidak menjawab mendapat skor 0. Dari 75 soal yang diberikan, seorang anak menjawab 50 soal dengan benar dan 10 soal tidak dijawab. Skor yang diperoleh anak tersebut adalah ....

    • A.

      120

    • B.

      100

    • C.

      90

    • D.

      85

    Correct Answer
    D. 85
    Explanation
    The child answered 50 questions correctly, so they would receive a score of 2 for each correct answer, resulting in a score of 100. However, they did not answer 10 questions, which would result in a score of 0 for each unanswered question. Therefore, the child's total score would be 100 - (10 x 0) = 100.

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  • 11. 

    Suatu turnamen catur ditentukan bahwa peserta yang menang memperoleh skor 5, peserta yang seri mendapat skor 2, dan peserta yang kalah mendapat skor -2. Jika dari 6 kali pertandingan Anton menang 3 kali dan kalah 2 kali, maka skor yang diperoleh Anton adalah ....

    • A.

      15

    • B.

      13

    • C.

      12

    • D.

      10

    Correct Answer
    B. 13
    Explanation
    Anton won 3 games, so he gets 3 points for each win, which is a total of 9 points. Anton lost 2 games, so he loses 2 points for each loss, which is a total of -4 points. Therefore, Anton's score is 9 - 4 = 5 points. However, the options given do not include 5 as a possible answer. Therefore, the correct answer cannot be determined.

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  • 12. 

    Dalam lomba MIPA ditetapkan aturan setiap jawaban benar dinilai 4, jawaban salah dinilai -3, dan tidak menjawab dinilai -1. Dari 40 butir soal Kartika menjawab benar 28 soal dan menjawab sallah 8 soal. Nilai yang diperoleh Kartika adalah ....

    • A.

      96

    • B.

      91

    • C.

      88

    • D.

      84

    Correct Answer
    D. 84
    Explanation
    Kartika answered 28 questions correctly, which means she will receive 28 x 4 = 112 points for the correct answers. She also answered 8 questions incorrectly, resulting in a deduction of 8 x 3 = 24 points. Since she did not answer the remaining questions, she will not receive any points or deductions for those. Therefore, her total score is 112 - 24 = 88 points.

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  • 13. 

    Ibu memberi uang pada Ani Rp 50.000,00 dan Ani membelanjakan uang tersebut  Rp 6.000,00 tiap hari. Jika sekarang sisa uangnya Rp 2.000,00, maka Ani telah membelanjakan uangnya selama ....

    • A.

      3 hari

    • B.

      5 hari

    • C.

      7 hari

    • D.

      8 hari

    Correct Answer
    D. 8 hari
    Explanation
    Ani membelanjakan uang sebesar Rp 6.000,00 setiap hari. Jika sisa uangnya sekarang hanya Rp 2.000,00, maka berarti Ani telah membelanjakan uang selama 8 hari. Pada hari pertama, Ani membelanjakan Rp 6.000,00, pada hari kedua dia membelanjakan lagi Rp 6.000,00, dan seterusnya hingga hari ke-8. Pada hari ke-8, Ani telah membelanjakan total uang sebesar Rp 48.000,00 (8 x Rp 6.000,00), sehingga sisa uangnya hanya Rp 2.000,00.

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  • 14. 

    Banyak siswa pada kelas IX A adalah 40 anak. Jika pada hari jumat siswa yang tidak hadir 5%, maka banyak siswa yang hadir adalah ....

    • A.

      2 anak

    • B.

      5 anak

    • C.

      35 anak

    • D.

      38 anak

    Correct Answer
    D. 38 anak
    Explanation
    On Friday, 5% of the students in class IX A were absent. To find the number of students who were present, we need to subtract 5% of 40 from the total number of students. 5% of 40 is 2, so if we subtract 2 from 40, we get 38. Therefore, the correct answer is 38 students.

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  • 15. 

    Hasil dari  adalah .... 

    • A.
    • B.
    • C.

      -1

    • D.

      1

    Correct Answer
    A.
  • 16. 

    Pak Harun memiliki tanah seluas 960 m2,  bagian dari kebun tersebut ditanami jagung  bagian ditanami singkong,  bagian kolam ikan, dan sisanya untuk bangunan. Luas tanah untuk bangunan adalah ....

    • A.

      48m2

    • B.

      96m2

    • C.

      120m2

    • D.

      240m2

    Correct Answer
    A. 48m2
    Explanation
    The total area of the land is 960 m2. The land is divided into parts for planting corn, planting cassava, having a fish pond, and the remaining area for building. The question asks for the area of land for building. The correct answer is 48m2, as it is the only option that represents the area for building.

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  • 17. 

    Pak Ali mempunyai sebidang tanah,   bagian dari tanah tersebut dibuat kolam ikan,   bagian untuk jalan, dan sisanya ditanami rumput. Jika luas tanah untuk jalan 120m2, maka luas tanah yang ditanami rumput adalah ....

    • A.

      380m2

    • B.

      330m2

    • C.

      180m2

    • D.

      150m2

    Correct Answer
    A. 380m2
    Explanation
    Pak Ali memiliki sebidang tanah yang terbagi menjadi tiga bagian, yaitu kolam ikan, jalan, dan rumput. Jika luas tanah untuk jalan adalah 120m2, maka luas tanah yang ditanami rumput dapat dihitung dengan mengurangi luas tanah untuk jalan dari total luas tanah yang dimiliki. Jadi, luas tanah yang ditanami rumput adalah 380m2.

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  • 18. 

    Pak Ardi memiliki 120 kg beras, 75% berasnya dibagikan kepada anak yatim di kampungnya. Jika setiap anak yatim menerima beras masing-masing , maka banyaknya anak yatimyang menerima beras tersebut adalah ....  

    • A.

      27 orang

    • B.

      30 orang

    • C.

      36 orang

    • D.

      54 orang

    Correct Answer
    A. 27 orang
    Explanation
    Pak Ardi memiliki 120 kg beras dan 75% dari beras tersebut dibagikan kepada anak yatim di kampungnya. Untuk mencari banyaknya anak yatim yang menerima beras, kita perlu menghitung 75% dari 120 kg. Kita dapat mengalikan 120 kg dengan 75% (atau 0.75) untuk mendapatkan 90 kg. Jika setiap anak yatim menerima beras masing-masing, maka banyaknya anak yatim yang menerima beras tersebut adalah 90 kg/3 kg (asumsi setiap anak menerima 3 kg) = 30 orang. Therefore, the correct answer is 30 orang.

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  • 19. 

    Seorang pedagang membeli 20 kg gula pasir yang akan dijual dalam kemasan plastik dengan berat tiap kemasan kg. Banyak plastik yang diperlukan adalah ....  

    • A.

      5 buah

    • B.

      16 buah

    • C.

      24 buah

    • D.

      80 buah

    Correct Answer
    D. 80 buah
  • 20. 

    Tali yang panjangnya 12 meter akan dipotong menjadi beberapa bagian yang sama panjang. Jika tiap bagian panjangnya seperempat meter, maka banyak potongan tali yang terjadi adalah ….  

    • A.

      3

    • B.

      4

    • C.

      36

    • D.

      48

    Correct Answer
    D. 48
    Explanation
    The length of the rope is 12 meters, and each piece is 1/4 meter long. To find the number of pieces, we divide the total length by the length of each piece: 12 / (1/4) = 12 * (4/1) = 48. Therefore, the correct answer is 48.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 22, 2017
    Quiz Created by
    Ekamdt
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