Study and practice Mathematics past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.
The graph of cumulative frequency distribution is known as
Aan ogive
Ba histogram
Ca frequency polygon
Drelative frequency
Enone
View Explanation & Discuss
Question 882
neco2008
If A = \(\frac{1}{2}\)h (a + b), make ‘a’ the subject of the formula
A(2A – 2bh) ÷ b
B(2A – bh) ÷ h
C(2A – bh) ÷ b
D(A – 2bh) ÷ h
E(2A – h) ÷ bh
View Explanation & Discuss
Question 883
neco2008
The median of a distribution can be estimated from
ABarchart
BCumulative frequency curve
CFrequency polygon
DPictorial
EPie chart
View Explanation & Discuss
Question 884
neco2008
Multiply (3\(\sqrt{a}\) - 4a) by (4a + 3\(\sqrt{a}\))
A9a + 16a2
B9a – 16a2
C3a + 16a2
D3a - 16a2
Ea - 16a2
View Explanation & Discuss
Question 885
neco2008
If tan α = \(\frac{1}{2}\) and tan β = \(\frac{1}{3}\) and both α and β are acute, find tan (α + β).
A0.015
B1
C10
D39.81
E45
View Explanation & Discuss
Question 886
neco2008
Bello chooses a number randomly from 1 to 10. What is the probability that it is either odd or prime?
A\(\frac{1}{10}\)
B\(\frac{2}{5}\)
C\(\frac{1}{2}\)
D\(\frac{3}{5}\)
E\(\frac{9}{10}\)
View Explanation & Discuss
Question 887
neco2008
In proving the congruence of two triangles, which of the following is not important?
Atwo sides and the included angles
Btwo angles and a side
Cthree sides
Dthree angles
Eright angle, hypotenuse and another side
View Explanation & Discuss
Question 888
neco2008
Rationalize the expression \(\frac{(7 - \sqrt{3})}{(13 - \sqrt{3})}\)
A(44 + 3\(\sqrt{3}\)) ÷ 83
B(44 + 2\(\sqrt{3}\)) ÷ 83
C(44 - 3\(\sqrt{3}\)) ÷ 83
D(44 - 4\(\sqrt{3}\)) ÷ 83
E(44 - 2\(\sqrt{3}\)) ÷ 83
View Explanation & Discuss
Question 889
neco2008
A chord XY of a circle with centre O and radius 5.32cm has ∠XOY = 140°. What is the length of the chord to the nearest centimetre?
A10cm
B6cm
C5cm
D3cm
E1cm
View Explanation & Discuss
Question 890
neco2008
Construct a quadratic equation whose roots are -\(\frac{3}{2}\) and 7
A3x2 + 11x + 21 = 0
B2x2 + 11x + 21 = 0
C2x2 - 11x – 21 = 0
D3x2 - 11x - 21 = 0
Ex2 - 11x – 21 = 0
View Explanation & Discuss
Question 891
neco2008
If N25,000.00 is kept in a bank at the rate of 2% simple interest, how much will it amount to at the end of 5 years?
AN2,500.00
BN5,000.00
CN12,500.00
DN27,500.00
EN125,000.00
View Explanation & Discuss
Question 892
neco2008
If y + \(\frac{1}{y}\) = 9, evaluate y2 + \(\frac{1}{y^2}\)
A27
B38
C54
D63
E79
View Explanation & Discuss
Question 893
neco2008
Which of the following angular inequalities defines an obtuse angle?
A0° < x < 90°
B0° ≤ x > 180°
C90° < x < 180°
D90° ≤ x < 180°
E90° > x < 180°
View Explanation & Discuss
Question 894
neco2008
Find the coefficient of xy in the expansion of (x - 4y)(3x + 2y)
A14
B12
C10
D-10
E-12
View Explanation & Discuss
Question 895
neco2008
A pair of shoes was sold for N2,250.00 at a loss of 10%. What was the cost price?
AN750.00
BN2,500.00
CN2,538.00
DN3,288.00
EN4,038.00
View Explanation & Discuss
Question 896
neco2008
If the 3rd and the 5th terms of an A.P are 6 and 10 respectively, find the 1st term and the common difference respectively.
A1, 2
B2, 2
C2, 3
D3, 2
E3,3
View Explanation & Discuss
Question 897
neco2008
The ages of 10 students in a class are; 15, 16, 15.5, 17, 14.9, 14.5, 14.1, 15.1, 14.8. find the range of their ages.
A6.1
B4.8
C2.9
D2.1
E1.9
View Explanation & Discuss
Question 898
neco2008
2 bags of sugar at Nx per bag are mixed with 3 bags of sugar at Ny per bag. What is the cost in N of the mixture per bag?
A\(\frac{(2x + 3y)}{5}\)
B\(\frac{(x + y)}{2}\)
C\(\frac{x}{2} +\frac{y}{3}\)
D\(\frac{(x + y)}{5}\)
E\(\frac{(3x + 2y)}{5}\)
View Explanation & Discuss
Question 899
neco2008
The ages of Abu, Segun, Kofi and Funmi are 17 years, (2x -13) years, 14 years and 16 years respectively. What is the value of x if their mean ages is 17.5 years?
A18
B23
C25
D36
E70
View Explanation & Discuss
Question 900
neco2008
A man travels at a rate of 25m/sec. If he travels for 10½hrs, how many kilometres has he covered?
