Mathematics 2018 Past Questions | JAMB

Study the following Mathematics past questions and answers for JAMBWAEC  NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

11. Convert 0.04945 to two significant figures

  • A. 0.040
  • B. 0.049
  • C. 0.050
  • D. 0.49

12. The probabilities that John and James pass an examination are \(\frac {3}{4}\)and \(\frac {3}{5}\) respectively. Find the probability of both boys failing the examination.

  • A.\(\frac {1}{10}\)
  • B.\(\frac {2}{10}\)
  • C.\(\frac {9}{20}\)
  • D.\(\frac {11}{20}\)

13.  An arc of a circle of radius 14cm subtends angle 300° at the centre. Find the perimeter of the sector formed by the arc (take π = 22/7)

  • A. 14.67cm
  • B. 42.67cm
  • C. 101.33cm
  • D. 513.33cm

 

14. Simplify  \(\frac {25^{\frac{2}{3}} \div  25^{\frac{1}{6}}} {(\frac{1}{5})^{\frac{7}{6}} \div (\frac{1}{5})^{\frac{1}{6}}}\)

  • A.25
  • B\(\frac{1}{5}\)
  • C.1
  • C.\(\frac{1}{25}\)

15.  \(\text{P} = \left[\frac{\mathrm{Q(R – T)}}{15}\right]^\frac{1}{3}\)

Make T the subject of the relation.

  • A. T = \(\frac{R + P3}{15Q}\)
  • B. T = \(\frac{R – 15P^3}{Q}\)
  • C. T =R – \(\frac{15P^3}{Q}\)
  • D. T = \(\frac{15R + Q}{P^3}\)

16.  What is the place value of 9 in the number 3.0492?

  • A. \(\frac{9}{10000}\)
  • B. \(\frac{9}{1000}\)
  • C. \(\frac{9}{100}\)
  • D. \(\frac{9}{10}\)

17.  If the simple interest on a sum of money invested at 3% per annum for 2 1/2  years is N123,

find the principal.

  • A. N676.50
  • B. N820
  • C. N1,640
  • D. N4,920

18. A machine valued at N20,000 depreciates by 10% every year. What will be the value of the machine at the end of two years?

  • A. N16,200
  • B. N14,200
  • C. N12,000
  • D. N8,000

19. The table shown gives the marks scored by a group of student in a test. Use the table to answer the question given.

Mark012345
Frequency127543

What is the median mark?

  • A. 1
  • B. 2
  • C. 3
  • D. 4

20. The table shown gives the marks scored by a group of student in a test. Use the table to answer the question given.

Mark012345
Frequency127543

What is the probability of selecting a student from the group that scored 2 or 3

  • A.\(\frac{1}{11}\)
  • B.\(\frac{5}{22}\)
  • C.\(\frac{7}{22}\)
  • D.\(\frac{6}{11}\)
Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments
0 0 votes
Article Rating
0
Would love your thoughts, please comment.x
()
x
Scroll to Top

join

naijavarcity

Subscribe to our mailing list and get latest school news