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Mathematics WAEC / WASSCE 1997 Number and Numeration
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}
E
{3, 5}
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
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
E
7
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
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%
E
20%
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
Simplify log39 + log315 - log35
A
log319
B
log3
C
3
D
1
E
o
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
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
E
4/3
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
If x varies over the set of real numbers, which of the following is illustrated in the diagram above?
Attached Figure / Diagram
Question diagram
A
-2 ≤ x < 3
B
-2 < x ≤ 3
C
-2 < x < 3
D
-2 ≤ x ≤ 3
E
x ≥ 3
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
Calculate the total surface area of a solid cone of slant height 15cm and base radius 8cm in terms of π
A
64πcm2
B
12Oπcm2
C
184πcm2
D
200πcm2
E
32Oπcm2
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
The cross-section of a prism is a right-angled triangle 3cm by 4cm by 5cm. The height of the prism is 8cm. Calculate its volume
A
48cm3
B
6Ocm3
C
96cm3
D
120cm3
E
24Ocm3
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
In the diagram, EF//QR, PE = 2cm, EQ = 4cm and FR = 6cm. Find x
Attached Figure / Diagram
Question diagram
A
2cm
B
3cm
C
4cm
D
5cm
E
6cm
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
PQRS and GHRS are parallelograms on the same base SR and between the same parallel straight line PH and SR. Which of the following is true?
Attached Figure / Diagram
Question diagram
A
Δ PGS = Δ QHR
B
Parallelogram PQRS = Δ QHR
C
Trapezium PQXS = Δ QHR
D
Δ PGS = Parallelogram GHRS
E
Parallelogram PQRS = Parallelogram GHRS
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
Divide 3.6721 by 4
A
0.9180
B
1.4180
C
1.1680
D
1.9180
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
The eleventh term of an AP, is 25 and its first term is -3. Find its common difference.
A
19/10
B
21/5
C
23/11
D
21/2
E
24/5
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
Find the common ratio in the GP: log 3, log 9, log 81 ..........
A
1
B
2
C
3
D
6
E
9
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
Find the value of t for which \(\frac{64}{27} = (\frac{3}{4})^{t - 1}\)
A
-4
B
-2
C
11/3
D
2
E
4
medium Difficulty
Mathematics WAEC / WASSCE 1997 Number and Numeration
Given that \(\frac{1}{2} \log_{10} P = 1\), find the value of P.
A
104
B
103
C
102
D
101
E
10-1
medium Difficulty
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