The scores of twenty students in a test are as follows: 44, 47, 48, 49, 50, 51, 52, 53, 53, 54, 58, 59, 60, 61, 63, 65, 67, 70, 73, 75. Find the third quartile.
See more
2015
The population of students in a school is 810. If this is represented on a pie chart, calculate the sectoral angle for a class of 7 students
See more
2015
The angle of elevation of an aircraft from a point K on the horizontal ground 30\(\alpha\). If the aircraft is 800m above the ground, how far is it from K?
See more
2015
PQRT is square. If x is the midpoint of PQ, Calculate correct to the nearest degree, LPXS
See more
2015
\(\begin{array}{c|c} x & 0 & 1\frac{1}{2} & 2 & 4 \\ \hline y & 0 & 5\frac{1}{2} & & \end{array}\)The table given shows some values for a linear graph. Find the gradient of the line
See more
2015
In the diagram, O is the centre, \(\bar{RT}\) is a diameter, < PQT = 33\(^o\) and < TOS = 76\(^o\). Using the diagram, find the size of angle PRS.
See more
2015
In the diagram, O is the centre, \(\bar{RT}\) is a diameter, < PQT = 33\(^o\) and <TOS = 76\(^o\). Using the diagram, calculate the value of angle PTR.
See more
2015
In the diagram, PQ//RT, QR//SU, what is x?
See more
2015
In the diagram, PTR is a tangent to the centre O. If angles TON = 180o, Calculate the size of angle PTN.
See more
2015
In the diagram, O is the centre. If PQ//RS, what is <MOP?
See more
2015
The dimension of a rectangular tank are 2m by 7m by 11m. If its volume is equal to that of a cylindrical tank of height 4cm, calculate the base radius of the cylindrical tank. [Take \(\pi = \frac{22}{7}\)]
See more
2015
The volume of a cone of height 3cm is 38\(\frac{1}{2}\)cm3. Find the radius of its base. [Take \(\pi = \frac{22}{7}\)]
See more
2015
Ada draws the graph of y = x2 - x - 2 and y = 2x - 1 on the same axes. Which of these equations is she solving?
See more
2015
Adding 42 to a given positive number gives the same result as squaring the number. Find the number
See more
2015
If m = 4, n = 9 and r = 16., evaluate \(\frac{m}{n}\) - 1\(\frac{7}{9}\) + \(\frac{n}{r}\)
See more
2015
Find the equation whose roots are \(\frac{3}{4}\) and -4
See more
2015
Factorize completely: 6ax - 12by - 9ay + 8bx
See more
2015
If 2n = y, Find 2\(^{(2 + \frac{n}{3})}\)
See more
2015
Given that logx 64 = 3, evaluate x log8
See more
2015
Find the 7th term of the sequence: 2, 5, 10, 17, 6,...