In a class of 40 students, 32 offer mathematics, 24 offer Physics, and 4 offer neither Mathematics nor Physics. How many offer both Mat
ematics and Physics?
A cinema hall contains a certain number of people. If 22\(\frac{1}{2}\)% are children, 47\(\frac{1}{2}\)% are men and 84 are women, find the number of men in the hall.
پاسخ دهید
(D)
133
9
If \(\frac{9^{2x-1}}{27^{x+1}} = 1\), find the value of x.
پاسخ دهید
(B)
5
10
The sum of four numbers is 1214\(_5\). What is the average expressed in base five?
پاسخ دهید
(B)
141
11
Given:
U = {Even numbers between 0 and 30}
P = {Multiples of 6 between 0 and 30}
Q = {Multiples of 4 between 0 and 30}
Find (P∪Q)c
پاسخ دهید
(A)
{2, 10, 14, 22, 26}
12
x varies directly as the product of u and v and inversely as their sum. If x = 3 when u = 3 and v = 1, what is the value of x if u = 3 and v = 3?
پاسخ دهید
(C)
6
13
Find the range of the value of x satisfying the inequalities 5 + x \(\leq\) 8 and 13 + x \(\geq\) 7
پاسخ دهید
(C)
-6 \(\leq\) x \(\leq\) 3
14
The graph of the function y = x\(^2\) + 4 and a straight line PQ are drawn to solve the equation x\(^2\) - 3x + 2 = 0. What is the equation of PQ?
پاسخ دهید
(B)
y = 3x + 2
15
The length a person can jump is inversely proportional to his weight. If a 20 kg person can jump 1.5 m, find the constant of proportionality
پاسخ دهید
(B)
30
16
Find the value of x and y respectively if 3x - 5y + 5 = 0 and 4x - 7y + 8 = 0
پاسخ دهید
(D)
5, 4
17
Three consecutive terms of a geometric progression are given as n-2, n and n+3. Find the common ratio
پاسخ دهید
(D)
3/2
18
Triangle OPQ above is the solution of the inequalities
پاسخ دهید
(A)
x + 1 ≥ 0, y + x ≤ 0, y - x ≥ 0
19
Factorize completely 4abx - 2axy -12b2x + 6bxy
پاسخ دهید
(A)
2x(a - 3b)(2b - y)
20
The sum of the first n terms of an arithmetic progression is 252. If the first term is -16 and the last term is 72, find the number of terms in the series
پاسخ دهید
(D)
9
21
A trapezium has two parallel sides of length 5cm and 9cm. If the area is 21cm2, find the distance between the parallel sides
پاسخ دهید
(A)
3 cm
22
The locus of a point P which moves on one side only of a straight line XY so that ∠XPY = 90o is
پاسخ دهید
(B)
a semicircle
23
Find the slope of the curve y = 2x\(^2\) + 5x - 3 at (1, 4).
پاسخ دهید
(D)
9
24
Evaluate \(\int^{3} _{2}(x^2 - 2x)dx\)
پاسخ دهید
(C)
4/3
25
If y = 3 sin(-4x), dy/dx is
پاسخ دهید
(C)
-12 cos (-4x)
26
Determine the maximum value of y = 3x2 - x3
پاسخ دهید
(C)
4
27
By how much is the mean of 30, 56, 31, 55, 43 and 44 less than the median?
پاسخ دهید
(C)
0.33
28
The range of 4, 3, 11, 9, 6, 15, 19, 23, 27, 24,21 and 16 is
پاسخ دهید
(D)
24
29
Find the mean of the distribution above
پاسخ دهید
(C)
3
30
On a pie chart, there are four sectors of which three angles are 45°, 90° and 135°. If the smallest sector represents N28.00, how much is the largest sector?
پاسخ دهید
(B)
N84.00
31
If \(^{n}P_{3} - 6(^{n}C_{4}) = 0\), find the value of n.
پاسخ دهید
(C)
7
32
Find the number of committees of three that can be formed consisting of two men and one woman from four men and three women
پاسخ دهید
(C)
18
33
A bag contains 5 blacks balls and 3 red balls. Two balls are picked at random without replacement. What is the probability that a black and red balls are picked?
پاسخ دهید
(A)
15/28
34
The result of tossing a fair die 120 times is summarized above. Find the value of x
پاسخ دهید
(B)
20
35
An aeroplane flies due north from airport P to Q and then flies due east R. If Q is equidistant from P and R, find the bearing of P and R
پاسخ دهید
(C)
225o
36
An arc of a circle subtends an angle of 30° on the circumference of a circle of radius 21cm. Find the length of the arc.
پاسخ دهید
(B)
22cm
37
Find the equation of the locus of a point P(x,y) which is equidistant from Q(0,0) and R(2,1).
پاسخ دهید
(A)
4x + 2y = 5
38
In the diagram above, PQ is parallel to RS. What is the value of α + β + γ?
پاسخ دهید
(A)
360o
39
XYZ is a circle with center O and a radius 7cm. Find the area of the shaded region.
پاسخ دهید
(D)
14cm2
40
In the diagram above, PQR is a straight line and PS is a tangent to the circle QRS with /PS/ = /SR/ and ∠SPR = 40°. Find ∠PSQ
