JAMB Mathematics Past Questions

Find the standard deviation of the distribution given in the table.

• √5

• √3

• √7

• √2

Simplify (3/2) * (5/6) * (2/3) * (11/15) * (3/4) * (2/27)

• 5 2/3

• 30

• 4 1/3

• 50

In how many ways can the letters of the word ELATION be arranged?

• 6!

• 7!

• 5!

• 8!

Find dy/dx if y = cos x

• A. sin x

• B. -sin x

• C. tan x

• D. -tan x

Factorize 2y^2 - 15xy + 18x

• (3y + 2x) (y - 6x)

• (2y − 3x) (y + 6x)

• (2y - 3x) (y −6x)

• (2y + 3x) (y − 6x)

If angle θ is 135⁰, evaluate cos θ

• A. 1/2

• B. √2/2

• C. −√2/2

• D. −1/2

Find the length of a chord which subtends an angle of 90° at the centre of a circle whose radius is 8cm.

• 8√3 cm

• 4 cm

• 8 cm

• 8√2 cm

y varies directly as w^2. When y = 8, w = 2. Find y when w = 3

• 6

• 18

• 12

• 9

If the angles of a quadrilateral are (3y+10)°, (2y+30)°, (y+20)° and 4y°, find the value of y.

• 66°

• 12°

• 30°

• 42°

In triangle PQR, q= 8cm, r=6cm and cos p = 1/12.

• √108 cm

• √9 cm

• √92 cm

• 10 cm