UNIZIK Mathematics 2007/2008 Day 1 Past Questions

x² - 4 = 0, then x = ?

After getting rise of 15%, a man's monthly salary is N345. how much per month did he earn before the increase?

A solid cylinder of radius 3cm has a total surface area of 36cm, find its height

The median of the set of numbers 4 , 9, 4, 13, 7, 14, 10, 17 is

7 pupils of average age 12 years, leaves a class of 25 pupils of average age 14 years, if 16 new pupils of average age 11 years join the class. What is the average age of pupils number in the classy

Divide the L.C.M. of 48, 64 and 80 by their H.C.F.

Find the least length of a rod which can be cut into exactly equal strips each 40 cm by 48 cm in length

A rectangular lawn has an area of 1815 square yards, if its length is 50 metre, find its breadth given that metre equal 1.1 yards

In a school 220 students offer biology or mathematics or both. 125 offer biology and 100 mathematics. How many students offer biology but not mathematics?

The time taken to do a piece of work is inversely proportional to the number of men employed. If it takes 45 men to do the piece of work in.5 days, how long will it take 25 men?

Simplify 52.40 - 5.7-3 - 45 -1.75 :

A trader bought goats for N4,000.00 each. He sold them for N 180,000 at a loss of 25% . How many did he buy?

A 5.0g of salt was weighted by Amaka as 5.1g. What is the percentage error :

Find correct to one decimal place 0.24633/0.306

A basket contains green, black and blue balls in the ratio of 5:2:1, if there are 10 blue balls, find the corresponding net ratio when 10 green and 10 black balls are removed from the basket :

Factorize completely (x+1)² - (2x+2)².

A student calculated the means of numbers as 45.3 while rechecking his working, he discovered that his total as short by 0.05 .What is the correct means of the five numbers?