Which of the following statements are correct?

A.	If ^@a^2^@ ends in ^@9^@, then ^@a^3^@ ends in ^@7^@.
B.	If ^@a^@ and ^@b^@ are integers such that ^@a^2 > b^2^@, then ^@a^3 > b^3^@.
C.	There is no perfect cube that ends in ^@4^@.
D.	If ^@a^@ divides ^@b^@, then ^@a^3^@ divides ^@b^3^@.

Simplify:
^@9\left\{m + 7\left(n + \overline{ m + 5n }\right)\right\}^@

A.	^@72m + 378n^@
B.	^@72m - 315n^@
C.	^@72m - 378n^@
D.	^@72m + 315n^@

A man walking at the speed of ^@9 \space km/hr^@, crosses a square field diagonally in ^@7^@ minutes. What is the area of the field?

A.	^@553250 \space m^2^@
B.	^@551250 \space m^2^@
C.	^@550950 \space m^2^@
D.	^@552050 \space m^2^@

Evaluate:
^@ [(4531)^2 - (4530)^2] ^@

A.	9062
B.	9061
C.	13590
D.	9060

Evalute ^@\left(\dfrac{ 3 }{ 7 }\right)^3^@

A.	^@\dfrac { 3 }{ 343 }^@
B.	^@\dfrac { 9 }{ 49}^@
C.	^@\dfrac { 343 }{ 27 }^@
D.	^@\dfrac{ 27 }{ 343 }^@

Ngan borrowed ^@₫ 90000 ^@ from Mellisa for ^@ 2 ^@ years at compound interest. Find the rate of interest charged by Mellisa if she received ^@ ₫ 101124 ^@ at the end of ^@ 2 ^@ years.

A.	^@ 5 \% ^@
B.	^@ 11 \% ^@
C.	^@ 7 \% ^@
D.	^@ 6 \% ^@

(y² - 81) ÷ (y - 9) = ?

A.	-9y + 1
B.	y + 9
C.	-y + 9
D.	9y + 1

Identify an open curve that is made up of line segment only.

A.
B.
C.
D.

If each side of a cube is tripled, find the factor by which the volume of the cube will change.

A.	6 times
B.	27 times
C.	3 times
D.	9 times

A rope makes ^@115^@ rounds of a cylinder with base radius ^@18 \space cm^@. How many times can it go round a cylinder with base radius ^@15 \space cm^@?

A.	^@148^@
B.	^@140^@
C.	^@158^@
D.	^@138^@

7 workers can paint a building in 8 days. If work has to be finished in 2 days, find the number of extra workers required.

A.	21
B.	22
C.	23
D.	20

Find factors of polynomial (a² + 4ab + 4b² - 4c²).

A.	(a + 2b + 2c) (a + 2b + 2c )
B.	(a + 2b - 2c) (a + 2b - 2c )
C.	(a - 2b + 2c) (a + 2b - 2c )
D.	(a + 2b + 2c) (a + 2b - 2c )

The line graph provides the sales of dolls of a company from Monday to Saturday on a particular week. Given that the cost of one doll is ^@₫26^@.

How much did the company receive from the sale of dolls on Friday?

A.	^@₫1300^@
B.	^@₫1290^@
C.	^@₫1302^@
D.	^@₫1310^@

Tugleo picks a three digit number and subtract it from the same number after reversing order of its digits. If this difference is divided by 11, find the remainder.

A.	1
B.	0
C.	2
D.	Can not be determined without knowing exact number

If 10% of 130 = x% of 52, then what is the value of x?

A.	27
B.	25
C.	32
D.	40

Oanh purchases two decoratives for ^@₫ 4820^@ each. She sold these decoratives, losing ^@2 \%^@ on one and gaining ^@4 \%^@ on the other. Find her gain or loss percent in the whole transaction.

A.	^@ 2 \% ^@
B.	^@1 \% ^@
C.	^@ 6 \% ^@
D.	^@ 4 \% ^@

Oanh borrowed ₫23040 from Hyeon at the rate of 14% simple interest per year. She then returned the money after 2 years and 4 months. How much money did she give to Hyeon in total?

A.	₫30596.4
B.	₫30586.4
C.	₫30556.4
D.	₫30566.4

^@20000^@ blood donors were registered with a charitable hospital. The number of donors increased at the rate of ^@2\%^@ every six months. What is the time period at the end of which the total number of blood donors becomes ^@20808^@?

A.	^@1\dfrac{1}{2}^@
B.	^@1^@
C.	^@2^@
D.	^@5\dfrac{1}{2}^@

Simplify the following polynomial expressions:
[( -y² + 3y - 3) × (4y² + y - 5)] + ( -4y² + 2y - 3)

A.	8y2 - 16y + 12
B.	- 4y4 + 11y3 - 8y2 - 16y + 12
C.	- 8y2 + 16y - 12
D.	- 8y2 - 16y - 12

The volume of a rectangular solid is given by the polynomial ^@ 84x^ { 4 } + 76x^ { 3 } + 64x^ { 2 } + 16x ^@. The length of the solid is given by ^@ 2x ^@ and the width is given by ^@ 6x + 2 ^@. Find the height of the solid.

A.	^@7x^ { 2 } + 4x + 4^@
B.	^@-6x^ { 2 } + x + 8^@
C.	^@-9x + 7^@
D.	^@-6x^ { 2 } + 6x + 4^@

A poll is taken among ^@10000^@ people working in Ha Noi. The aim was to see what their annual salaries were.

Annual Salary	Number of people
Less than ^@₫40000^@	^@140^@
^@₫40001^@ to ^@₫75000^@	^@700^@
^@₫75001^@ to ^@₫150000^@	^@960^@
^@₫150001^@ to ^@₫250000^@	^@3280^@
More than ^@₫250000^@	^@4920^@

If you choose a person at random from this group, what is the probability that he or she earns more than ^@₫75000^@ annually?

A.	^@ \dfrac { 241 } { 250 }^@
B.	^@\dfrac { 230 } { 250 }^@
C.	^@ \dfrac { 237 } { 250 }^@
D.	^@\dfrac { 229 } { 250 }^@

5 teams compete in a track competition. If there are 18 events in the competition, no event ends in a tie, and no team wins more than 4 events, what is the minimum possible number of teams that won at least two events?

A.	3
B.	7
C.	6
D.	5