If he drives at the constant speed for the first 100km before increasing the speed by 30%, it also takes him one hour less than the usual... Which of the following statements is NOT t[r]
Trang 1BỘ GIÁO DỤC
VÀ ĐÀO TẠO
ĐỀ THI CHÍNH THỨC
CUỘC THI GIẢI TOÁN QUA INTERNET NĂM 2015
VÒNG THI CẤP TOÀN QUỐC LỚP 8 TIẾNG ANH Ngày thi : 10/04/2015 Thời gian làm bài : 60 phút
Test 1 Web
Easy level
1
When the polynomial
remainder is {}
Key: -5
2
Key: -4
3
Given that 75k is a perfect cube, the least positive integer k is
{}
Key: 45
4
If n is a natural number such that is a square
number, then n= {}
Key: 3
Medium level
1
On the number line, point A has coordinate -4 and point B has coordinate 6
If point C is the midpoint of AB, then its coordinate is {}
Key: 1
2
Key: 1
3
Trang 2Key: 20
Hard level
1
A triangle ABC has and the bisector AD
If AB=40cm, AD = 30cm, then AC = {} cm
Key: 120
2
Key: -2
3
Mr Joseph drives car from A to B at a constant speed If the speed of the car is increased by 20%, it takes him one hour less than the usual time If he drives at the constant speed for the first 100km before increasing the speed by 30%, it also takes him one hour less than the usual The distance of AB is {} km
Key: 360
Test 2 Cóc vàng (Đáp án A là đáp án đúng)
Easy level
1
2
Trang 3Which of the following statements is NOT true?
a
b
c
d
Medium level
1
As shown in the figure, the length of BE is…
2
3
Trang 42
3
2 0 -2 1
Test 3 Mê cung
Easy level
1
Key: 6
2
Trang 5Key:
4
5
Key: 35
6
Medium level
1
Key: 30
2
Trang 6Key: 3
4
5
As shown in the figure,
the minimum value of
is … (Figure is not to scale)
Key: 10
6
Key: 13
Hard level
1
Key: 3
Trang 7Key: 1 3
Key: 2015