UNIZIK Mathematics 2008/2009 Day 2 Past Questions

Practice each question, then open it to see the full details.

The sum of the angles of a regular polygon is 2520°. How many sides does the polygon have?

A.20
B.18
C.15
D.16

If the exterior angles of a quadrilateral are y, (2y + 5), (y + 15)° and (3y-10)°, find y°

A.61.43
B.60
C.51.43
D.50

Calculate the surface area of a sphere of radius 7cm(take pi = 22/7).

A.86cm²
B.154cm²
C.616cm²
D.1434cm²

If 3log a + 5loga - 6loga = log64, what is a?

A.4
B.6
C.8
D.16

A sales girl gave a change of N1.15 to a customer instead of N1.25. Calculate her percentage error.

A.10%
B.2.5%
C.8%
D.0.8%

The ages of three men are in the ratio 3:4:5. If the difference between the ages of the oldest and youngest is 18 a years, find the sum of the ages of the three men.

A.45 years
B.72 years
C.108 years
D.216 years

Which of the following numbers is a perfect cube?

A.350
B.504
C.950
D.1728

A car moves at an average speed of 30km/hr. How long does it take to cover 200 metres?

A.2.4 sec
B.24 sec
C.144 sec
D.240 sec

If N varies directly as M and N = 8 when M = 20, find My when No = 7

A.13
B.15
C.17 1/2
D.18 1/2

Express 0.0462 in standard form.

A.0.462 x 10
B.0.462 x 10^-1
C.4.62 x 10^-1
D.4.62 x 10^-2