編號:

6929

年級:

中一 (F1)

科目:

數學 (Maths)

學校

檔案格式:

pdf

頁數:

10

檔名:

st_stephen_girl_college_F1-Maths-17-18-my

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內容節錄：

181 students

ST. STEPHEN'S GIRLS' COLLEGE

Mid-Year Examination 2017 - 2018

Please read the following instructions very carefully.

Mathematics

Time Allowed : 1 hour

Question/Answer Paper

consists of TWO sections, A and B.

2. Write your class, class number, name and division in the

spaces provided on this cover.

3. This paper carries 100 marks. Attempt ALL questions in

this paper. Write your answers in the spaces provided in

this Question/Answer Paper.

4. The diagrams in this paper are not necessarily drawn to

VC, LHK, KAL, LL, CYN

For Markers' Use Only

Form 1 Mathematics Mid-Year Exam 2017-18

End of Paper

Form 1 Mathematics Mid-Year Exam 2017-18

Section A (58%)

All rough work should be done on the rough work paper provided, but will not be marked.

1. Divide +6 by the sum of +1 and -4. Find the result.

2. Arrange the following numbers in ascending order:

+3-1₁-3.5, -1, +4

3. Evaluate 6-(-1.5)+(+9)×|

4. Represent the following word phrase by an algebraic

expression:

Subtract the square of the sum of a and b from half of c.

5. For the algebraic expression 3xxy-12+20÷10×x,

(a) the number of terms,

(b) the constant term.

6. Solve the equation 20= 4(2-x).

7. Simplify 3a+4bxa-2a÷2+2ab.

8. The remaining stored value of John's octopus card is $9.2.

After buying 6 bags of candy with this octopus card, the

remaining stored value becomes -$23.8. Find the price of a

bag of candy.

9. Frank's weight is two-thirds of his father's weight. If their 9.

total weight is 120 kg, find the weight of Frank's father.

Form 1 Mathematics Mid-Year Exam 2017-18

10. Ben has 3 times as many sweets as Ken. After eating 14

sweets, Ben gives the remaining sweets to 4 friends. If

each friend gets 13 sweets, how many sweets does Ken

11. The sum of two consecutive integers is -435. Find the

larger integer.

12. Which of the following is a formula?

14. Set up an inequality to represent each of the following.

(a) The result of adding m to 8 is not greater than 20.

(b) The result of subtracting a from 4 squared is less than

13. The printing cost $C of n pages of notes can be calculated 13.

by the formula C = 4 +0.25n. If n = 400, find the printing

15. Refer to the diagram. By observation only, name

(a) one acute angle;

(b) one obtuse angle.

16. Which of the following angles is the largest?

of a right angle

of a straight angle

of a round angle

of a round angle

Form 1 Mathematics Mid-Year Exam 2017-18

17. Classify the following triangle according to the sizes of its

18. If 45% of a number is 135, find the number.

19. There are altogether 36 red balls and white balls in a bag.

If 33% of the balls are white, find the number of red

balls in the bag.

20. In a school, there are 1200 students and 42% of the

students are boys. If 189 boys do not wear glasses, find the

percentage of boys who do not wear glasses.

21. Last year, the height of a plant was 40 cm. If the height of

the plant is 50 cm this year, find the percentage increase of

the height of the plant.

22. A dress is sold at a 24% discount and the selling price is

$190. Find the marked price of the dress.

23. A shirt marked at $150 is sold at a discount of 20%. If the

percentage profit is 60%, find the cost price of the shirt.

24. The weights of five tourists are given in the table below.

Paul Queenie

Weight 82 kg 53 kg

Rose Stanley Tom

76 kg 104 kg 99 kg

Estimate their total weight by rounding off each weight to

the nearest 10 kg.

Form 1 Mathematics Mid-Year Exam 2017-18

(42%) All working must be clearly shown in the spaces provided.

Find the product of the first two multiples of 5.

Find the sum of all the prime numbers between 10 and 18.

Using the results of (a) and (b), evaluate the following:

Subtract the product of the first two multiples of 5 from the sum of all the prime numbers

between 10 and 18.

26. It is given that a copper wire is no longer than 50 cm. It is then bent into a rectangle of length

x cm and width y cm.

Set up an inequality to represent the above situation.

Can the copper wire form a rectangle of length 16 cm and width 10 cm? Explain your

If the width of the rectangle formed is 11 cm, write down two possible lengths of the

rectangle formed.

Form 1 Mathematics Mid-Year Exam 2017-18

27. The price of a chair is $10 more expensive than one-third of the price of a table. If John buys a

table and 4 chairs, he needs to pay $250. Find the total price of a chair and a table. (6 marks)

Form 1 Mathematics Mid-Year Exam 2017-18

28. In the figure, PQR is a straight line. Find x and y.

Form 1 Mathematics Mid-Year Exam 2017-18

29. Solve the equation

Form 1 Mathematics Mid-Year Exam 2017-18

30. Alice weighs 45 kg. The weight of Betty is 10% higher than that of Alice.

(a) Find the weight of Betty.

(b) The weight of Alice is 10% lower than that of Christine. Do Betty and Christine have the

same weight? Explain your answer.

31. In a shop, when a hand is sold at a discount of 30%, a profit of $200 is made. It is given that

the marked price of the handbag is 5 times of its cost price.

(a) Find the cost price of the handbag.

(b) The shopkeeper wants to make a profit of $400 if the handbag is sold at a discount of 20%.

Find the new marked price of the handbag.