1991 WAEC SSCE Mathematics Past Questions

1991

In the diagram above , |AD| = 10cm, |DC| = 8cm and |CF| = 15cm.Which of the following is correct?

1991

In the diagram above , |AD| = 10cm, |DC| = 8cm and |CF| = 15cmIf the area of triangle DCF = 24cm2, find the area of the quadrilateral ABCD.

1991

In the diagram above, PQ and XY are two concentric arc; center O, the ratio of the length of the two arc is 1:3, find the ratio of the areas of the two sectors OPQ and OXY.

1991

Find the area of an equivalent triangle of side 16cm

1991

In the diagram above, O is the center of the circle, |SQ| = |QR| and ∠PQR = 68o. Calculate ∠PRS.

1991

In a given regular polygon, the ratio of the exterior angle to the interior angles is 1:3. How many side has the polygon?

1991

In the diagram above, ∠PTQ = ∠URP = 25o and XPU = 4URP. Calculate ∠USQ.

1991

The angles of a pentagon are xo, 2xo (x + 6O) o,(X + 10) o, (x -1O) o. Find the value of x

1991

Which of the following about a rhombus may notBe true?

1991

Mrs. Jones is expecting a baby. The probabilityThat it will be a boy is 1/2 and probability that theBaby will have blue eyes is 1/4. What is theProbability that she will have a blue-eyed boy?

1991

A box contains 2 white and 3 blue identicalMarbles. If two marbles are picked at random,One after the other without replacement, what isThe probability of picking two marbles of differentColours?

1991

If events X and Y are mutually exclusive, .P(X) = 1/3 and P(Y) = 2/5,P(X∪Y) is

1991

If events X and Y are mutually exclusive, .P(X) = 1/3 and P(Y) = 2/5,P(X∩Y) is

1991

Find the median of the distribution.

1991

Find the mode of the distribution.

1991

Find the mean of the distribution.

1991

The mean of 30 observations recorded in anExperiment is 5. lf the observed largest value of34 is deleted, find the mean of the remainingObservations

1991

Which of the following is not a measure ofDispersion?

1991

In a class of 80 students, every student had toStudy Economics or Geography or bothEconomics and Geography. lf 65 students studiedEconomics and 50 studied Geography, how manyStudied both subjects?

1991 WAEC SSCE Mathematics Past Questions

In the diagram above , |AD| = 10cm, |DC| = 8cm and |CF| = 15cm.Which of the following is correct?

In the diagram above , |AD| = 10cm, |DC| = 8cm and |CF| = 15cmIf the area of triangle DCF = 24cm2, find the area of the quadrilateral ABCD.

In the diagram above, PQ and XY are two concentric arc; center O, the ratio of the length of the two arc is 1:3, find the ratio of the areas of the two sectors OPQ and OXY.

Find the area of an equivalent triangle of side 16cm

In the diagram above, O is the center of the circle, |SQ| = |QR| and ∠PQR = 68o. Calculate ∠PRS.

In a given regular polygon, the ratio of the exterior angle to the interior angles is 1:3. How many side has the polygon?

In the diagram above, ∠PTQ = ∠URP = 25o and XPU = 4URP. Calculate ∠USQ.

The angles of a pentagon are xo, 2xo (x + 6O) o,(X + 10) o, (x -1O) o. Find the value of x

Which of the following about a rhombus may notBe true?

Mrs. Jones is expecting a baby. The probabilityThat it will be a boy is 1/2 and probability that theBaby will have blue eyes is 1/4. What is theProbability that she will have a blue-eyed boy?

A box contains 2 white and 3 blue identicalMarbles. If two marbles are picked at random,One after the other without replacement, what isThe probability of picking two marbles of differentColours?

If events X and Y are mutually exclusive, .P(X) = 1/3 and P(Y) = 2/5,P(X∪Y) is

If events X and Y are mutually exclusive, .P(X) = 1/3 and P(Y) = 2/5,P(X∩Y) is

Find the median of the distribution.

Find the mode of the distribution.

Find the mean of the distribution.

The mean of 30 observations recorded in anExperiment is 5. lf the observed largest value of34 is deleted, find the mean of the remainingObservations

Which of the following is not a measure ofDispersion?

In a class of 80 students, every student had toStudy Economics or Geography or bothEconomics and Geography. lf 65 students studiedEconomics and 50 studied Geography, how manyStudied both subjects?

P=(2, 1,3, 9, 1/2)Q=(1,21/2,3, 7)andR=(5, 4, 21/2)Find P∩Q∩R