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...
Latihan US Matematika

Quiz
•
Mathematics
•
9th Grade
•
Medium
Rina pandini
Used 1+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
Hasil dari perhitungan adalah..
-128
-8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bentuk sederhana dari ..
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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