2019/2020 JAMB Mathematics Practice And Likely Questions And Answers

2019/2020 JAMB Mathematics Practice And Likely Questions And Answers for Jamb examination on Monday 12th, Tuesday 13th, Wednesday 14th, Thursday 15th of March 2019/2020 practical trail questions and answers.Attempt the below questions and answer it properly, it’s time to test yourself​ and score high in jamb, we selected the likely questions to come out this year in mathematics. Study well

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1. Integrate 2x²+2x/x with respect to x

A. 2x³/3 – 2x + k
B. x3 + 2x + k
C. 2x³/3 + 2x + k
D. x3 – 2x + k

2. If the mean of 4, y, 8 and 10 is 7. Find Y?

A. 6
B. 10
C. 7
D. 9

3. In a school of 150 students, 80 offer French while 60 offer Arabic and 20 offer neither. How many students offer both subjects?

A.45
B.10
C.35
D.30

4. If the 2nd term of a G.P is 8/9 and the 6th term is 4½. Find the common ratio.

A. 2
B. ³/²
C. ⅔
D. 3

5. The sum of the interior angles of a polygon is a given as 1080o. Find the number of the sides of the polygon.

A. 5
B. 7
C. 6
D. 8

6. Evaluate ∫(cos4x + sin3x)dx

A. sin4x – cos3x + k
B. sin4x + cos3x + k
C. ¼sin4x – ⅓cos3x + k
D. ¼sin4x + ⅓cos3x + k
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7. If x(base10) = 23(base 5). Find x

A. 12
B. 14
C. 15
D. 13

8. Calculate the range of 20, -6, 25, 30, 21, 28, 32, 33, 34, 5, 3, 2, and 1.

A. 32
B. 36
C. 33
D. 40

9. Factorize k² – 2kp + p².

A. (k +p)2
B. (k – p)2
C. k2 + p2
D. k2 – p2

10. Calculate the perimeter of a sector of a circle of radius 12cm and angle 60°.

A. (12 + 4π)cm
B. (24 + 4π)cm
C. (12 + 6π)cm
D. (24 + 6π)cm

11. Marks| 2 | 3 | 4
___________________
Frequency| 4 | 4 | y

The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.

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A. 5
B. 8
C. 6
D. 7

12. Given U = {x:x is a positive integer less than 15} and P = {x:x is even number from 1 to 14}. Find the compliment

A. {1, 3, 5, 7, 9, 11, 13, 15}
B. {2, 3, 5, 7, 9, 11, 13}
C. {1, 3, 5, 7, 9, 11, 13}
D. {2, 3, 5, 7, 11, 15}

13. A number of pencils were shared out among Bisi, Sola and Tunde in the ratio of 2:3:5 respectively. If Bisi got 5, how many were shared out?

A. 15
B. 25
C. 30
D. 50
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14. Calculate the perimeter of a sector of a circle of radius 9cm and angle 36°.

A. 18cm
B. (18 + 9π/5)cm
C. (9 + 9π/5)cm
D. 9π/5cm

15. Scores 3 6 5 2
Frequency 2 3 4 6

From the table above, find the median

A. 3
B. 5
C. 4
D. 6

16. An arc subtends an angle of 30° at the centre of a circle radius 12cm. Calculate the length of the arc.

A. 6πcm
B. 2πcm
C. 3πcm
D. 9πcm

17. The mean of 2-t, 4+t 3-2t, 2+t and t-1 is

A. 2
B. t
C. -2
D. -t

18. The nth term of the sequence 3, 9, 27, 81…..is

A. 3 x 3n-2
B. 3 x 3n-1
C. 3 x 3n+2
D. 3 x 3n+1

19. If y = 2x³ + 6x² + 6x + 1, Find dy/dx

A. 6x² + 12x + 1
B. 6x² + 6x + 1
C. 6x² + 6x + 6
D. 6x² + 12x + 6

20. Evaluate ∫(sinx – 5x²)dx

A. -cosx – 10x + k
B. cosx – 5x³/3 + k
C. -cosx – 5x³/3 + k
D. cosx – 10x + k

21. Solve for x and y respectively
3x – 5y = 9
6x – 4y = 12

A. ¾, 1
B. ⁴/3, 1
C. ¾, -1
D. ⁴/3, -1

22. OGIVE is constructed using

A. Third quartile range
B. Semi-quartile range
C. Cummulative frequency
table
D. Inter-quartile table

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23. Rationalize 6√−4 / √6√+4√

A. 5 + 2√6
B. 5 – 4√6
C. 5 + 4√6
D. 5 – 2√6

24. If three admin. of Prep. JAMB CBT 2017/18 agreed to share their salary arrears in the ration of their ages, which are 18 years, 20 years, 22 years respectively. If the sum of the money collected is N120,000.00K, How much does the second staff received?

A. N36,000
B. N44,000
C. N40,000
D. N15,000

25. X and Y are two sets such that n(X) = 15, n(Y) = 12 and n{∩ Y} = 7. Find ∩{X ∪ Y}
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A. 21
B. 225
C. 15
D. 20

26. Find the total surface area of a cylinder of base radius 5cm and length 7cm ( π = 3.14)

A. 17.8cm²
B. 15.8cm²
C. 75.4cm²
D. 54.7cm²

27. A man with an annual salary of N2000, has allowances of N600. If Income Tax is 5%. How much tax does he pay each year?

A. 15
B. 20
C. 30
D. 25

28. Find the equation of a line which is form origin and passes through the point (−3,
−4)

A. y = 3x/4
B. y = 4x/3
C. y = 2x/3
D. y = x/2

29. Given that A = {1, 5, 7}

B = {3, 9, 12, 15}

C = {2, 4, 6, 8}

Find (A ∪ B) ∪ C

A. {1, 2, 3, 4, 5, 6, 7, 8, 9,12,
15}
B. {1, 2, 3, 5, 6, 8, 12, 15}
C. {2, 4, 5, 9, 12, 15}
D. {1, 5, 6, 7, 8, 9, 12, 15}

30. The extension of a stretched string is directly proportional to its tension. If the extension produced by a tension of 8 Newton’s is 2cm, find the extension produced by a tension of 12 newton’s.

A. 2
B. 1
C. 0
D. 3

31. If A = (−3,5) and B = (4,−1) find the co-ordinate of the mid point

A. 2, ½
B. ½ , 2
C. 1, ½
D. 0, 2

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32. The volume of a cylinder whose height is 4cm and whose radius 5cm is equal to (π = 3.14)

A. 3.13cm²
B. 145cm²
C. 314cm²
D. 214cm²

33. The probability of an event A is 1/5. The probability of B is 1/3 . The probability both A and B is 1/15. What is the probability of either event A or B or both

A. 2/15
B. ¾
C. 7/15
D. 1/15

34. Find the distance between the points (-2,-3) and (-2,4)

A. 3m
B. 2.4m
C. 3.2m
D. 5.1m

35. Find the area of the curved surface of a cone whose base radius is 3cm and whose height is 4cm (π = 3.14)

A. 17.1cm²
B. 27.2cm²
C. 47.1cm²
D. 37.3cm²
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36. *Practice Circle Geometry*

37. *Venn Diagram*

38. *Pie,bar chart*

39. *Logarithm and surds*

40. *Changing to subject of the formula*

41. *Simple interest/compound interest*
S.I= PRT/100
C.I= (A) = P ( 1 + R/100)^n

42. *Probability*

43. *Polynomials*

C.S.A of a cone = πrlL²= h² +

Volume of a cylinder = πr²h

Length of arc = tita/360 x 2πr

Perimeter of a sector = Length of arc + 2r

Area of segment = tita/360 x πr² + r²/2 Sintita

44. *Polygon*
Interior angles n represents number of sides (n-2)180  or (2n-4)90

Exterior angle= 360/n

4- quadrilateral
5- Pentagon
6- hexagon
7- heptagon
8- octagon
9- nonagon
10- decagon

45. *Range, Mean deviation, variance, standard deviation, mean, median, mode*
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