If log\(_{x^{\frac{1}{2}}}\)64 = 3, find the value of x
คำตอบ
(B)
16
9
If \(\frac{1+\sqrt{2}}{1-\sqrt{2}}\) is expressed in the form of x+y√2 find the values of x and y
คำตอบ
(A)
(-3, -2)
10
If X = {n\(^2\) + 1:n = 0,2,3} and Y = {n+1:n=2,3,5}, find X∩Y.
คำตอบ
(C)
∅
11
A book seller sells Mathematics and English books. If 30 customers buy Mathematics books, 20 customers buy English books and 10 customers buy the two books. How many customers has he altogether?
คำตอบ
(B)
40
12
Make Q the subject of formula when \(L=\frac{4}{3}M\sqrt{PQ}\)
คำตอบ
(A)
\(\frac{9L^2}{16M^2P}\)
13
If 2x\(^2\) - kx - 12 is divisible by x-4, Find the value of k.
The fifth term of an A.P is 24 and the eleventh term is 96. Find the first term.
คำตอบ
(D)
-24
20
A binary operation * is defined on the set of positive integers is such x*y = 2x-3y+2 for all positive integers x and y. The binary operation is?
คำตอบ
(B)
neither commutative nor closed on the set of positive integers
21
A binary operation on the real set of numbers excluding -1 is such that for all m, n ∈ R, mΔn = m+n+mn. Find the identity element of the operation.
คำตอบ
(B)
zero
22
In the diagram above, PQ//RS. The size of the angle marked x is?
คำตอบ
(B)
80o
23
Find the exterior angle of a 12 sided regular polygon
คำตอบ
(D)
30o
24
In the diagram above ∠OPQ is?
คำตอบ
(B)
53o
25
Find the area of the figure above
[π = 22/7]
คำตอบ
(D)
84.8 cm2
26
Find the angle subtended at the center of a circle by a chord which is equal in length to the radius of the circle.
คำตอบ
(C)
60o
27
Find the capacity in liters of a cylindrical well of radius 1 meter and depth 14 meters
[π = 22/7]
คำตอบ
(A)
44,000 liters
28
The locus of a point equidistant from two points p(6,2) and R(4,2) is a perpendicular bisector of PR passing through?
คำตอบ
(B)
(5,2)
29
Find the gradient of a line which is perpendicular to the line with the equation 3x + 2y + 1 = 0
คำตอบ
(B)
2/3
30
If sinθ = 3/5. Find Tanθ
คำตอบ
(A)
3/4
31
Find the derivative of \(y=\frac{x^7 - x^5}{x^4}\)
คำตอบ
(C)
3x2-1
32
Differentiate sin x - x cos x
คำตอบ
(B)
x sin x
33
Find the minimum value of the function y = x(1+x)
คำตอบ
(A)
-1/4
34
Evaluate \(\int_1 ^2(6x^2-2x)dx\)
คำตอบ
(D)
11
35
Evaluate \(\int^{\frac{\pi}{2}} _{\frac{-\pi}{2}} cos x dx\)
คำตอบ
(C)
2
36
On a pie chart there are six sectors of which four angles are 30°, 45°, 60°, 90° and the remaining two angles are in the ratio 2:1. Find the smallest angles of the remaining two angles.
คำตอบ
(C)
45o
37
The bar chart above shows the number of times the word "a, and , in, it, the ,to" appear in a paragraph in a book.
What is the ratio of the least frequent word to the most frequent word?
คำตอบ
(A)
1/6
38
What is the mean of the data t, 2t-1, t-2, 2t -1, 4t and 2t+2?
คำตอบ
(D)
2t-1/3
39
Find the median of 4, 1, 4, 1, 0, 4, 4, 2 and 0
คำตอบ
(C)
2
40
If x > 0, find the range of number x-3, 3x+2,x-1, 4x, 2x-1, x-2, 2x-2, 3x and 3x+1
คำตอบ
(A)
3x+3
41
Find the mean deviation of 2, 4, 5, and 9
คำตอบ
(B)
2
42
In how many ways can the letters of the word ACCEPTANCE be arranged?
คำตอบ
(A)
10! / (2!2!3!)
43
Find the number of ways of selecting 6 out of 10 subjects for an examination
คำตอบ
(D)
210
44
The probability of picking a letter T from the word OBSTRUCTION is?
คำตอบ
(B)
2/11
45
The result of rolling a fair die 150 times is as summarized in the table above. What is the probability of obtaining a 5?
