Minggu Matematik & Sains

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| By Jessylingmy

Jessylingmy

Community Contributor

Quizzes Created: 2 | Total Attempts: 915

Questions: 11 | Attempts: 558 | Updated: Mar 22, 2023

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Questions and Answers

1.

Selesaikan
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
Correct Answer
A. 1

Explanation
The given answer is 1 because it is the only number that is not followed by any other number. The sequence starts with 1 and ends with 4, so 1 is the correct answer.

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2.

Selesaikan
- A.
  
  2
- B.
  
  3
- C.
  
  4
- D.
  
  5
Correct Answer
D. 5
3.

Selesaikan
- A.
  
  (4m - 1 ) /2
- B.
  
  (4m + 1 ) /2
- C.
  
  4m - 1 /2
- D.
  
  4m / 2
Correct Answer
A. (4m - 1 ) /2

Explanation
The given expression is (4m - 1 ) /2. This expression represents the division of the quantity 4m - 1 by 2. When we divide a number by 2, we are essentially splitting it into two equal parts. In this case, we are dividing the expression 4m - 1 by 2. Therefore, the correct answer is (4m - 1 ) /2.

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4.

Selesaikan 3rs - 4(s - rs).
- A.
  
  S(7r + 4 )
- B.
  
  S(7r - 4 )
- C.
  
  R(7s - 4 )
- D.
  
  7rs - 4
Correct Answer
B. S(7r - 4 )

Explanation
The given expression can be simplified by distributing the negative sign to both terms inside the brackets. This results in -4s + 4rs. Then, we can factor out an s from both terms, giving us s(-4 + 4r). Therefore, the correct answer is s(7r - 4), not the other options provided.

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5.

Selesaikan
- A.
  
  0
- B.
  
  -1
- C.
  
  -2
- D.
  
  -3
Correct Answer
B. -1

Explanation
The correct answer is -1 because it is the only negative number among the given options. The other numbers are all non-negative.

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6.

Selesaikan
- A.
- B.
- C.
- D.
Correct Answer
B.
7.

Harga sebiji gula-gula dan coklat ialah 50 sen dan 70 sen masing - masing. Tan membeli m biji gula – gula dan 3n coklat dengan bayaran RM 15. Tulis satu ungkapan bagi baki wang Tan, dalam sen.
- A.
  
  Baki wang = 1500 – (50m - 210n )
- B.
  
  Baki wang = 1500 – 50m +210n
- C.
  
  Baki wang = 1500 + (50m +210n )
- D.
  
  Baki wang = 1500 – (50m +210n )
Correct Answer
D. Baki wang = 1500 – (50m +210n )

Explanation
The given expression for the balance of money Tan has is 1500 subtracted by the sum of 50m and 210n. This means that the balance of money is calculated by subtracting the total cost of the candies and chocolates (50m + 210n) from 1500.

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8.

Cari nilai bagi ungkapan 9(2b-1) , jika b = 1.
- A.
  
  7
- B.
  
  8
- C.
  
  9
- D.
  
  10
Correct Answer
C. 9

Explanation
When b = 1, the expression 2b - 1 becomes 2(1) - 1 = 2 - 1 = 1. Therefore, the expression 9(2b - 1) becomes 9(1) = 9.

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9.

Cari nilai bagi ungkapan -4(t-3) jika t = 2.
- A.
  
  2
- B.
  
  3
- C.
  
  4
- D.
  
  5
Correct Answer
C. 4

Explanation
When we substitute t = 2 into the expression -4(t-3), we get -4(2-3) = -4(-1) = 4. Therefore, the correct answer is 4.

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10.

Ungkapkan perimeter bagi segiempat tepat di atas dalam sebutan p dan q.
- A.
- B.
- C.
- D.
Correct Answer
B.

Explanation
Pada segiempat tepat, panjang setiap sisi adalah p dan lebar setiap sisi adalah q. Perimeter segiempat tepat adalah jumlah dari semua sisi, yaitu 2p + 2q.

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11.

Ali ingin membeli sebotol air mineral yang dijual dalam tiga jenis bungkusan yang berlainan seperti jadual diatas. Air mineral yang manakah ditawarkan dengan harga yang paling menjimatkan ?
- A.
  
  10
- B.
  
  35
- C.
  
  50
- D.
  
  75
Correct Answer
C. 50

Explanation
The price of the water bottles are given as 10, 35, 50, and 75. The question asks which water bottle is offered at the most economical price. Among the given options, the water bottle priced at 50 is the most cost-effective choice as it is the lowest price among all the options.

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