A rectangular box with a square base and no top has a volume of 500 cm, the dimensions of the box that require the least amount of material are

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

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

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

Which of these is a measure of location?

Two dice are thrown. What is the probability that the sum of the two numbers obtained is greater than 10?

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?

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

One of these is a demerit of a sample

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

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?

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

The length of a rectangle is three times its width. If the perimeter is 72 cm, the width of the rectangle is

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

Which of the following is the formula for range?

A company employs 100 people, 65 of whom are men. 60 people including all the women are paid weekly. The number of the men that are paid weekly is

In an arithmetic sequence whose 4th term is 14 and whose 11th term is 70, the first term and common difference are

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

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?

_________ are used when you want to visually examine the relationship between two quantitative variables.

AAUA allocations to various faculties in a school budget are as follows:

Science: ₦35,000,000.00
Education: ₦25,000,000.00
Law: ₦20,000,000.00
Social and Management: ₦20,000,000.00.
In a pie chart to represent this information, the corresponding angle to science is

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?

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

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

Solve the simultaneous linear equations: 2x + 5y = 11, 7x + 4y = 2.

A housewife bought five yams at Y34 per yam and three oranges at Y5 each where Y is the currency reckoned in base six. The total amount spent by the housewife is

A _______ variation is one whose values convey the concept of attribute rather than number.

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. Ann decides she will give herself a reward
when she has swum a total of 400 lengths. After how many sessions does she get her reward?

Which of the following points does not lie on the line 2y + 5x -4 = 0?

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

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

A straight line has a gradient of -2 and passes through the point (4, 1). What is its equation?

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

As a general rule, the _______ is the best measure of central tendency because it is more precise.

What is the length of an arc of a circle with a radius of 5 if it subtends an angle of 60° at the center?

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

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

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

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?