Tunse bought a house for ₦1,250,000.00 and spent ₦350,000.00 to renovate it. He then sold the house for ₦2,000,000.00. What is the percentage gain?

If un = 2, 6, 10, ..., the last tem of the sequence is 90. The number of terms in the sequence is

What is sin 30${}^{}$?

The heights in cm, of 10 children are 145, 163, 159, 162, 167, 149, 150, 160, 170, and 155. The mean height of the children is

Find the principal which amounts to ₦4,400 at simple interest in 5 years at 2% per annum

Which of the following is the formula for range?

What is the slope of the line that is perpendicular to y - 2x = 1?

Justice starts a 5km walk from P on a bearing 0230. He then walks 4km on a bearing of 1130 to Q. What is the bearing of Q from P?

The line y = 5x – 3 and y = 2x + 9 intersects at P. What are the coordinates of P?

The most frequently occurring number in a set of values is called the ______.

Find the equation of the line through (5,7) parallel to the line 7x + 5y - 5 = 0.

The roof of a shelter is made from a piece of corrugated iron 2.3m long inclined at 18º to the horizontal. How far from the wall does the roof stick out?

One of these is a demerit of a sample

The _______ is often the preferred measure of central tendency if the data are severely skewed.

If un = 2, 6, 10, ..., the sum of the terms of the sequence above is

Find the number of sides of a regular polygon whose interior angle is twice the exterior angle.

Mr. Robson bought bags of orange for ₦2,500 each. He sold them for ₦90,000 at a loss of 20%. How many bags of orange did he buy?

If 35 is the median of the data set including 21, 7, 45, 33, 62 and x, then x =

Find the sum to infinity of the following series 3 + 2 + 4 + 4/3 + 8/9 + 16/27 + ......

The ______ is the value you calculate when you want the arithmetic average.

In a survey of villagers, it is found that 20% of the people have visited Kano and 25% have visited Port Harcourt. If 5% have been to both cities, then the percentage that have visited neither Kano nor Port Harcourt is

If x = 2, then (x - 1)(2x - 3) =

Ann goes swimming regularly. She wants to improve her fitness, so she decides to swim 10 lengths in the first session and increase the number of lengths she swims by 2 every session. When she reaches 50 lengths in a session she will not increase the number any further. If Ann asks her friend Joy to come swimming with her, Joy starts coming at Sue’s 8th session. Joy starts to swim 15 lengths and increases the number of the lengths by 5 each time. After how many of Joy’s sessions does she swim the same number of lengths as Ann?

Find the value of p, if the line which passes through (-1, p) and (-2p, 2) is parallel to the line 2y + 8x - 17 = 0.

Rationalize $\frac{(4\sqrt{7}+\sqrt{2})\; /}{(\sqrt{2}-7)}$

In an arithmetic sequence whose 4th term is 14 and whose 11th term is 70, the sum of the first 12 terms of the sequence is

Find the distance between points A(-4, 5) and B(-3, 2).

The sum of the first 20 terms of the progression 3, 6, 12, ... is

Which of these is a measure of location?

Three consecutive positive integers a, b and c are such that b² = 4(a + c). Find the value of c.

In a class, 120 students speak English or French or both. 70 speak English and 55 speak French. How many speak English but not French?

A straight line has the equation 10y = 3x + 15. Which of the following is true?

What is the sum of the first 40 even positive integers?

Find all the values of $x$ satisfying the inequality $-14\le 4-3x\le 31$

A ladder 20m long rests against a vertical wall so that the foot of the ladder 9m from the wall. The height (correct to 1 decimal place above the ground at which the upper end of the ladder touches the wall is

Paul and his friend, Peter went to buy an article costing ₦600. Peter had 10% of the cost and Paul, 40% of the remainder. How much did they have altogether?

The chances of three independent events P, Q, R occurring are $\frac{\mathrm{1/}}{2}$, $\frac{\mathrm{2/}}{3}$,$\frac{\mathrm{1/}}{4}$ respectively. What are the chances of P and Q only occurring?

In an arithmetic sequence with 25 terms, if the first term is 60 and last term is -12 the common difference is

If un = 2, 6, 10, ..., the 12th term of the sequence is

Ann goes swimming regularly. She wants to improve her fitness, so she decides to swim 10 lengths in the first session and increase the number of lengths she swims by 2 every session. When she reaches 50 lengths in a session she will not increase the number any further. After how many sessions does Ann swim 50 lengths for the first time?