Mathematics Past Questions

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556

Instead of recording the number 1.23cm of the radius of a tube, a student recorded 1.32cm. Find the percentage of error, correct to one decimal place.

A. 6.8%
B. 7.3%
C. 9.6%
D. 14.4%
E. 15.4%

View Answer & Discuss (6) WAEC 1989

557

In the diagram above, ∠SPR = P and ∠SQR = 2x. Find x in terms of P

A. x = p + 2
B. x = p - 2
C. x = p²
D. x = p/2
E. x = 2p

View Answer & Discuss (4) WAEC 1989

558

In the diagram above ABDE and FCDE are parallelograms. If |FC| = 12.2cm and the height |PC| = 4.0cm, calculate the area of the parallelogram ABDE.

A. 3.05cm²
B. 8.20cm²
C. 16.20cm²
D. 24.40cm²
E. 48.8cm²

View Answer & Discuss (2) WAEC 1989

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559

Using the above graph, if 10º < x < 60º, what is the value of x for which sin x = cos x?

A. 0^o
B. 20^o
C. 30^o
D. 45^o
E. 50^o

View Answer & Discuss (5) WAEC 1989

560

The venn diagram below shows the number of students who studied Physics, Chemistry, and Mathematics in a certain school. How many students took at least two of the three subjects?

A. 165
B. 160
C. 155
D. 135
E. 85

View Answer & Discuss (10) WAEC 1989

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