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JAMB Mathematics Questions and asnwers 2019 .
OBJECTIVES
1. Correct 241.34 (3 x 103)2 to 4 significant figures
A. 0.0014
B. 0.001448
C. 0.0022
D. 0.002172
2. At what rate would a sum of #100.00 deposited for 5
years raise an interest of #7.50?
A. 11/2%
B. 21/2%
C. 15%
D. 25%
3. Three children shared a basket of mangoes in such a
way that the first child took ¼ of the mangoes and the
second ¾ of the remainder. What fraction of the
mangoes did the third child take?
A. 3/16
B. 7/16
C. 9/16
D. 13/16
4. Simplify and express in standard form (0.00275 x
0.00640/( 0.025 x 0.08)
A. 8.8 x 101
B. 8.8 x 102
C. 8.8 x 103
D. 8.8 x 103
5. Three brothers in a business deal share the profit at
the end of contract. The first received 1/3 of the profit
and the second 2/3 of the remainder. If the third
received the remaining #12.000.00, how much profit did
they share?
A. #60,000.00
B. #54,000.00
C. #48,000.00
D. #42,000.00
6. Simplify √160r2 + √(71r4 + √100r3
A. 9r2
B. 12√3r
C. 13r
D. √13r
7. Simplify √27 + 3/√3
A. 4√3 B. 4/√3 C. 3√3 D. 3√/4
8. Simplify 3Log69 + Log612 + Log664 – Log672
A. 5 B. 7776 C. Log631 D. (7776)6
9. Simplify (1 + 1)1
x1 y1¬¬
10. Find the sum of the first twenty terms of the
arithmetic progression Log a, Log a2, Log a3
A. log a20
B. log a21
C. log a200
D. log a210
11. A carpenter charges #40.00 per day for himself and
#10.00 per day for his assistant. If a fleet of a cars
were painted for #2,000.00 and the painter worked 10
days more than his assistant, how much did the
assistant receive?
A. #32.00
B. #320.00
12. Find the sum of the first 18 terms of the progression
3, 6, 12………..
A. 3(217 – 1)
B. 3(218) – 1)
C. 3(218 + 1)
D. 3(218 – 1)
13. The angle of a sector of a circle, radius 10.5cm, is
480. calculate the perimeter of the sector
A. 8.8cm
B. 25.4cm
C. 25.6cm
D. 29.8cm
JAMB MATHEMATICS QUESTIONS TODAY…
MATHS 9AM
1 : (101000) base 2
2 : square root 3 – 2 square 2 + square root 6 – 3
3 : 120
4 : 18
5 : 0.000083
6 : 1 3
7 : 4.0cm square
8 : 1/2(x base 1 y base 1), 1/2 (x base 2 + y base 2)
9 : 3
10 : 6
11 : 2, 6
12 : 10! / 3! 3! 2!
13 : 8/15
14 : 45
15 : 3 square root 2
16 : 1/2
17 : 24:16
18 : 25
19 : (3,8,2 10,3,2 3,6,4)
20 : 16 (1/2) power n
21 : 792
22 : 45 degree
23 : 51.2
24 : {4,6}
25 : 85 degree
26 : 5
27 : 82
28 : N1560
29 : 3
30 : 6 sin x – 4/3 x power 3 + k
31 : 11
32 : (x+1) (3x power 2 – 8x + 11) – 19
33 : 1
34 : 1
35 : 5
36 : (10413) base five
37 : {t}
38 : 36
39 : 3
40 : 6.5
14. Find the length of a side of a rhombus whose
diagonals are 6cm and 8cm.
A. 8cm
B. 5cm
C. 4cm
D. 3cm
15. Each of the interior angles of a regular polygon is
1400. How many sides has the polygon?
A. 9 B. 8 C. 7 D. 5
16. A cylindrical pipe, made of metal is 3cm, thick if the
internal radius of the pipe is 10cm. Find the volume of
metal used in making 3m of the pipe
A. 153πcm3
B. 207πcm3
C. 15,300πcm3
D. 20,700πcm3
17. If the height of two circular cylinders are in the ratio
2:3 and their base radii are in the ratio 9. What is the
ratio of their volume?
A. 27:32
B. 27:23
C. 23:32
D. 21:27
18. The locus of a point which moves so that it is
equidistant from two intersecting straight lines is the
A. perpendicular bisector of the two lines
B. angle bisector of the two lines
C. bisector of the two lines
D. line parallel to the two lines
19. 4, 16, 30, 20, 10, 14 and 26 are represented on a
pie chart. Find the sum of the angles of the sectors
representing all numbers equal to or greater than 16.
A. 480
B. 840
C. 920
D. 2760
20. The mean of ten positive numbers is 16. when
another number is added, the mean becomes 18. find
the eleventh number.
A. 3
B. 16
C. 18
D. 30
21. Two numbers are removed at random from the
numbers 1,2,3 and 4. what is the probability that the
sum of the numbers removed is even?
A. 2/3
B. ½
C. 1/3
D. ¼
22. Find the probability that a number selected at
random from 41 to 56 is a multiple of 9
A. 1/9
B. 2/15
C. 3/16
D. 7/8
23. Musa borrows #10.00 at 2% per month interest and
repays #8.00 after 4 months. However much does he
still owe?
A. #10.80
B. #10.67
C. #2.80
C. #2.67
24. If 3 gallons of spirit containing 20% water are added
to 5gallons of another spirit containing 15% water, what
percentage of the mixture is water?
A. 24/5%
B. 167/8%
C. 181/8%
D. 187/8%
25 What is the product of 27/5 – (3)3 and (1/5)?
A. 5
B. 3
C. 1
D. 1/25
26. Simplify 2log2/5 – log72/125 + log9
A. 1 – 4log 3
B. –1 + 2log3
C. –1 +5log2
D. 12log2
27. A car travels from Calabar to Enugu, a distant of
pkm with an average speed of ukm per hour and
continues to Benin, a distance of qkm, with an average
speed of wkm per hour. Find its average speed from
Calabar to Benin.
A. (p+q)/(up+wq)
B. u+w
C. uw(p+q)/(wp+uq)
D. (wp+uq)/(u+wq)
28. If w varies inversely as uv/u + v and is equal to 8
when u = 2 and v = 6, find a relationship between u, v,
w.
A. upw = 16(u + t)
B. 16ur = 3w(u + t)
C. upw = 12(u + t)
D. 12upw = u + r
29. If g(x = x2 + 3x ) find g(x + 1) – g(x)
A. (x + 2)
B. 2(x + 2)
C. (2x + 1)
D. (x + 4)
30. Factorize m3 – m2 – m + 2
A. (m2 + 1)(m – 2)
B. (m + 1)(m + 1)(m + 2)
C. (m + 1)(m + 1)(m – 2)
D. (m2 + 2)(m – 1)
31. The angles of a quadrilateral are 5x – 30, 4x + 60,
60 – x and 3x + 61. find the smallest of these angles.
A. 5x – 30
B. 4x + 60
C. 60 – x
D. 3x + 61
32. What is the nth term of the sequence 2, 6, 12, 20,
…?
A. 4n – 2
B. 2(3n – 1)
C. n2 + n
D. n2 + 3n +2
33. If the binary operation * is defined by m*n = mn +
m + n for any real number m and n, find the identity
element under this operation.
A. e = 1
B. e = 1
C. e = 2
D. e = 0
34. When PT is the transpose of P, calculate [PT] when
x = 0, y = 1 and z = 2
A. 48
B. 24
C. –24
D. –48
35. PQ is equivalent to
A. PPT
B. PPT
C. QP
D. PP
36. Determine the distance on the earth’s surface
between two towns P(Lat. 600N, Long. 200E) and Q
(Lat. 600N, Long 250W)
A. 800p/9km
B. 800Ö3p/9km
C. 800pkm
D. 800Ö3pkm
37. X is a point due east of point Y on a coast Z is
another point on the coast but 6.3km due south of Y. if
the distance ZX is 12km, calculate the bearing of Z
from X
A. 2400
B. 2100
C. 15008
D. 600
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Article Name  2019 JAMB MATHEMATICS QUESTION AND ANSWER 
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