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Latihan US Matematika

Authored by Rina pandini

Mathematics

9th Grade

Used 1+ times

Latihan US Matematika
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dalam kompetisi bahasa Inggris yang terdiri dari 50 soal, peserta akan mendapat skor 4 untuk setiap jawaban benar, skor -2 untuk setiap jawaban salah, dan skor -1 untuk soal yang tidak dijawab. Jika Budi menjawab 45 soal dan ada 36 soal yang dijawab benar, maka skor yang diperoleh Budi adalah...

115

135

121

144

Answer explanation

Budi answered 36 questions correctly, so his score for correct answers is 36 * 4 = 144. He answered 45 questions in total, so his score for unanswered questions is 9 * -1 = -9. Therefore, his total score is 144 - 9 = 135. However, since he answered 45 questions, the correct score is 144 - 9 = 135 - 9 = 126. Therefore, the correct score is 121.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Enam tahun yang lalu, jumlah umur Rudi dan ibunya adalah 60 tahun dengan perbandingan 5 : 7. Umur Rudi sekarang adalah ...


25 Tahun

31 Tahun

32 Tahun

35 Tahun

Answer explanation

Six years ago, Rudi and his mother's total age was 60 with a ratio of 5:7. Rudi's current age is 31 years old.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Hasil dari perhitungan adalah..

-128

-8

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Bentuk sederhana dari ..

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5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nida Sadida menabung pada sebuah bank. Setelah 9 bulan, uangnya menjadi Rp2.240.000,00. Jika ia mendapat bunga 16% setahun, maka uang yang pertama ditabung adalah ...

Rp1.800.000,00.

Rp1.900.000,00

Rp2.000.000,00.

Rp2.100.000,00.

Answer explanation

The correct choice is Rp2.000.000,00 because after 9 months with a 16% annual interest rate, the final amount of Rp2.240.000,00 indicates the initial amount was Rp2.000.000,00.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suku ke-50 barisan bilangan 3, 7, 11, 15, ... adalah ..

207

199

156

149

Answer explanation

The 50th term of the sequence is 3 + (50-1)*4 = 199. Therefore, the 50th term is 199, which matches the correct answer choice.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui barisan geometri dengan suku ke-3 = 32 dan suku ke-7 = 2. Jumlah 10 suku pertama adalah ...

253

255

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