Mathematics Past Questions

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1921

The pilot of an aeroplane, flying 10km above the ground in the direction of a landmark, views the landmark to have angles of depression of 35^o and 55^o. Find the distance between the two points of observation

A. 10(sin 35^o - sin 55^o)
B. 10 cos35^o - cos 55^o
C. 10(tan35^o - tan55^o)
D. 10(cot35^o - cot55^o)

View Answer & Discuss (4) JAMB 1989

1922

4sin² x - 3 = 0, find x if 0 \(\geq\) x \(\geq\) 90^o

A. 30^o
B. 45^o
C. 60^o
D. 9^o

View Answer & Discuss (1) JAMB 1989

1923

A square tile has side 30cm. How many of these tiles will cover a rectangular floor of length 7.2m and width 4.2m?

A. 336
B. 420
C. 576
D. 720

View Answer & Discuss JAMB 1989

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1924

A cylindrical metal pipe 1m long has an outer diameter of 7.2cm and an inner diameter of 2.8cm. Find the volume of metal used for the cylinder

A. 440\(\pi\)cm³
B. 1100\(\pi\)cm³
C. 4400\(\pi\)cm³
D. 11,000\(\pi\)cm³

View Answer & Discuss (3) JAMB 1989

1925

OXYZW is a pyramid with a square base such that OX = OY= OZ = OW = 5cm and XY = XW = YZ = WZ = 6cm. Find the height OT

A. 2\(\sqrt{5}\)
B. 3
C. 4
D. 4\(\sqrt{3}\)

View Answer & Discuss (9) JAMB 1989

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