1997 - WAEC Mathematics Past Questions and Answers - page 1
1
Express (0.0425 / 2.5) as a fraction
A
17/10,000
B
17/1,000
C
17/250
D
17/100
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2
If P = {3, 5, 6} and Q = {4, 5, 6} then P∩Q equals
A
{3, 4}
B
{4, 5}
C
{4, 6}
D
{5, 6}
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3
A and B are two sets. The number of elements in A∪B is 49, the number in A is 22 and number in B is 34. How many elements are in A ∩ E?
A
105
B
27
C
15
D
12
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4
A student found the approximate value of 0.02548 correct to two places of decimal instead of two significant figures. Find the percentage error.
A
0%
B
131/3%
C
15 5/13%
D
2/3%
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5
Simplify log39 + log315 - log35
A
log319
B
log3
C
3
D
1
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6
Solve me equation: 2/3 (x + 5) = 1/4(5x - 3)
A
11/7
B
18/23
C
3
D
43/7
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7
Which of the following equations has its roots as 4 and -5?
A
x2 + 4x - 20 = 0
B
x2 + x + 20 = 0
C
x2 - x + 20 = 0
D
x2 + x - 20 = 0
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8
Solve the equations: 4x -y = 11; 5x + 2y = 4.
A
x = 6, y = 13
B
x = -2, y = -3
C
x = -2, y = 3
D
x = 2, y = -3
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9
Make q the subject of the relation t = √pq/r - r2
A
q =
rt2/p - r3
B
q =
t2/p - r2
C
q =
rt/p - r3
D
q =
p - r3/rt2
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10
P varies inversely as the square of W. When W = 4, P = 9. Find the value of P when W = 9
A
729/16
B
6
C
4
D
16/9
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