Mathematics Past Questions

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606

Find the sum of the first five terms of the G.P 2,6, 18 ....

A. 484
B. 243
C. 242
D. 130
E. 121

View Answer & Discuss WAEC 1990

607

Let J be the set of positive integers, If H = {x: x∈J, x\(^2\) < 3 and x ≠ 0}, then

A. H = {1}
B. H is an infinite set
C. H = {0, 1, 2}
D. H = {}
E. J ≤ H

View Answer & Discuss WAEC 1990

608

In a class of 80 students, every students had to study economics or geography, or both economics and geography, if 65 students studied economics and 50 studied geography, how many studied both subjects?

A. 15
B. 30
C. 35
D. 45
E. 50

View Answer & Discuss WAEC 1990

609

The area shaded with horizontal lines is the solution set of the inequalities;

A. y ≥ x, y + 3 ≥ 2x, x ≤ 3
B. y ≤ x, y + 2x ≥ -3, x ≤ 3
C. y ≤ -x, y + 2x ≤ 3, x ≥ -3
D. y ≥ -x, y + 3 ≤ 2x, x ≥ -3
E. y ≤ x, y ≤ 2x - 3, x ≥ 3

View Answer & Discuss (3) WAEC 1990

610

the area shaded with vertical lines is the solution set of the inequalities;

A. y ≤ x, y + 2x ≤ -3
B. y ≥ x, y + 2x ≥ - 3
C. y ≤ x, y ≤ 2x - 3, x ≤ 3
D. y ≤ -x, y ≤ 2x - 3, x ≤ 3
E. y ≥ x, y + 2x ≥ 3, x ≤ 3

View Answer & Discuss (1) WAEC 1990

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