JAMB MATHEMATICS SAMPLE
QUESTIONS AND ANSWERS TO
CBT EXAMS
1. The expression ax^2 + bx takes the value 6 when x =
1 and 10 when x = 2. Find its values when x = 5
A. 10
B. 12
C. 6
D. -10
ANSWER: A (10)
2. The indefinite integral of xe^x, for any real constant
is
A. C
B. x + e^x + C
C. x^2 + e^x + C
, 2
D. e^x(x-1) + C
ANSWER: D ( e^x(x-1) + C )
3. A cone has a base radius of 4 cm and a height of 3
cm. The area of its curved surface is
A. 12 pi cm^2
B. 20 pi cm^2
C. 24 pi cm^2
D. 251 pi cm^2
ANSWER: B (20 pi cm^2)
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4. The sum of the first five terms 0f the series 4+2+1…
is
A. 12
B. -12
C. -6
2