What is the value of ?
 

13

 + 

10

13

  = 1

A.	5
B.	3
C.	2
D.	4

Vita is setting up a factory to manufacture tennis balls. If he buys a machine that costs ៛26968, then he can manufacture a tennis ball for ៛2.9. On the other hand, if he buys a machine that costs ៛17800, he can manufacture a tennis ball for ៛5.3.
How many tennis ball should he manufacture, so that total cost is the same no matter which machine he buys?

A.	3835
B.	3810
C.	3820
D.	3805

Find the measure of each interior angle of a regular polygon of ^@4^@ sides.

A.	^@ 95 ^ \circ ^@
B.	^@ 90 ^ \circ ^@
C.	^@ 85 ^ \circ ^@
D.	^@ 115 ^ \circ ^@

Find the square root of 881 correct to three places of the decimal.

A.	0.29681
B.	29.681
C.	296.81
D.	2.9681

Which of the following numbers is not a perfect cube?

A.	3456
B.	1000
C.	216
D.	1331

A grocer purchased 40 kg of pulses at ៛12 per kg and mixed it with 150 kg pulses at ៛16 per kg. At what rate should he sell the mixture (per kg) to gain 16%?

A.	17.59
B.	34.59
C.	40.59
D.	21.59

What is the value of a.
7a +  

1

3

  =  

11.5

3

 

A.	a = -0.5
B.	a = 0.5
C.	a = 1.5
D.	a = -1.5

In the following figure, ^@ AD = AB, ^@ ^@ \angle DAB = \angle DCB = \angle AEC = 90^\circ ^@ and ^@ AE = 13 \space cm. ^@ Find the area of the quadrilateral ^@ ABCD. ^@

A.	^@ 39 \space cm^2^@
B.	^@ 169 \space cm^2^@
C.	^@ 174 \space cm^2^@
D.	^@ 166 \space cm^2^@

A room is ^@13 \space m^@ long and ^@11 \space m^@ broad. It has one door measuring ^@1 \space m^@ by ^@1.7 \space m^@ and two windows each measuring ^@1.4 \space m^@ by ^@1.4 \space m^@. The cost of painting the walls of the room at the rate of ^@៛140^@ per ^@m^2^@ is ^@៛100287.6^@. Find the height of the room.

A.	^@ 16 \space m^@
B.	^@ 17 \space m^@
C.	^@ 7.5 \space m ^@
D.	^@ 15 \space m ^@

Simplify: ^@\left[\dfrac { -c^{-2} } { -c^{ 7 } a^{-4} b^{ -8 } \times (c^{ -13 } \times b^4)} \right]^4^@

A.	^@ a^{ 17 } b^{ 18 }^@
B.	^@c^{ 16 } a^{ 16 } b^{ 16 }^@
C.	^@ a^{ 17 } b^{ 16 }^@
D.	^@c^{ 16 } a^{ 19 } b^{ 16 }^@

The price of ^@ 22 \space kg ^@ of rice or ^@ 7 \space kg ^@ of bananas is ^@៛ 330.^@ Find the price of ^@ 2 \space kg ^@ of rice and ^@ 35 \space kg ^@ of bananas.

A.	^@៛1682^@
B.	^@៛1684^@
C.	^@៛1686^@
D.	^@៛1680^@

Factorize (16a² - 25).

A.	(4a + 5) (4a - 5)
B.	(a + 1) (16a - 25)
C.	(a - 1) (16a + 25)
D.	(4a - 5) (4a - 5)

The graph below shows the average daily circulation (in thousands) of two newspapers (A and B) for ten years. Find the difference in the average daily circulation of two newspapers in the year when the difference in average daily circulation was maximum.

A.	14 thousands
B.	12 thousands
C.	15 thousands
D.	13 thousands

If 54x12 is a five digit number which is divisible by 9, find the smallest value of x.

A.	4
B.	5
C.	6
D.	7

Simplify the following polynomial expressions:
[( -2p² - 2p - 1) × ( - p - 5)] + ( -p² + 4p - 4)

A.	- 11p2 - 15p - 1
B.	11p2 + 15p - 1
C.	2p3 + 11p2 + 15p + 1
D.	11p2 - 15p - 1

Lemmy purchases two video games for ^@៛ 2510^@ each. She sold these video games, losing ^@8 \%^@ on one and gaining ^@6 \%^@ on the other. Find her gain or loss percent in the whole transaction.

A.	^@ 7 \% ^@
B.	^@ 4 \% ^@
C.	^@ 2 \% ^@
D.	^@1 \% ^@

How long will it take for an amount to become 4 times of itself at 20% per annum simple interest?

A.	14 years
B.	16 years
C.	13 years
D.	15 years

Find the compound interest of ^@ ៛50000 ^@ after ^@ 2 ^@ years, compounded annually. The rate of interest is ^@ 11 \% ^@ per annum during the first year and ^@ 16 \% ^@ per annum during the second year.

A.	^@ ៛ 14466 ^@
B.	^@ ៛ 14398 ^@
C.	^@ ៛ 14380 ^@
D.	^@ ៛ 14343 ^@

If the length and width of a rectangle are ( -6x² + 7x - 5) and (9x² + 3x + 5), find the area of the rectangle.

A.	- 54x4 + 45x3 + 54x2 + 20x - 25
B.	- 54x4 + 45x3 - 54x2 + 20x - 25
C.	- 54x4 - 45x3 - 54x2 + 20x - 25
D.	- 54x4 + 45x3 - 54x2 + 20x + 25

Simplify: (4a² - 8ab + 4b² - 25c²) ÷ (2a - 2b + 5c)

A.	(2a - 2b + 5c )
B.	(2a + 2b + 5c )
C.	(2a - 2b - 5c )
D.	(2a + 2b - 5c )

It is Brianna's birthday today and she distributed toffees to her classmates. The toffees were in a bag as shown below. Brianna's puts her hand in the bag and takes out a toffee without looking. What is the probability that she picked out a striped toffee?

A.	8 30
B.	1 30
C.	1
D.	12 30

An express train from Serei Saophoan to Phnom Penh runs every 5^th day. If the train went on Tuesday, after how many days will the train run on a Wednesday?

A.	12 days
B.	15 days
C.	16 days
D.	19 days