Mathematics Exam Past Questions and Answers | JAMB, WAEC and NECO

Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.

• Question 1251: A student measures a piece of rope and found that it was 1.26m long. If the actual length of the rope is 1.25m, what was the percentage error in the measurement? Options:
  A) 1.40%
  B) 0.01%
  C) 0.25%
  D) 6.9%
  E) 0.80%
  Show Answer
  The correct answer is E .
• Question 1252:

  From a point R, 300m north of P, a man walks eastward to a place Q which is 600m from P. Find the bearing of P from Q, correct to the nearest degree

  Options:
  A) 026°
  B) 045°
  C) 210°
  D) 240°
  Show Answer
  The correct answer is D .
• Question 1253:

  $\begin{array}{cccccc}\text{Class Interval}& 1-5& 6-10& 11-15& 16-20& 21-25\\ Frequency& 6& 15& 20& 7& 2\end{array}$

  Estimate the median of the frequency distribution above

  Options:
  A) 10$\frac{1}{2}$
  B) 11$\frac{1}{2}$
  C) 12
  D) 13
  Show Answer
  The correct answer is C .
• Question 1254: Without using table, calculate the value of 1 + sec² 30^o Options:
  A) 2$\frac{1}{3}$
  B) $\frac{2}{15}$
  C) $\frac{5}{3}$
  D) 3$\frac{1}{2}$
  Show Answer
  The correct answer is A .
• Question 1255:

  If the simple interest on a sum of money invested at 3% per annum for 2$\frac{1}{2}$  years is ₦123, find the principal.

  Options:
  A) ₦676.50
  B) ₦820
  C) ₦1,640
  D) ₦4,920
  Show Answer
  The correct answer is C .
• Question 1256:

  In how many ways can the word MATHEMATICIAN be arranged?

  Options:
  A) 6794800 ways
  B) 2664910 ways
  C) 6227020800 ways
  D) 129729600 ways
  Show Answer
  The correct answer is D .
• Question 1257:

  

  The cumulative frequency curve represents the ages of ages of students in a school. What age group do 70% of the students belongs?

  Options:
  A) 17.5 - 20.5
  B) 16.5 - 19.5
  C) 15.5 - 19.5
  D) 15.5 - 18.5
  Show Answer
  The correct answer is A .
• Question 1258: A micrometer is defined as one millionth of a millimeter Options:
  A) 0.00012m
  B) 0.0000012m
  C) 0.000012m
  D) 0.00000012m
  E) 0.000000012m
  Show Answer
  The correct answer is C .
• Question 1259: The diameter of a metal rod is measured as 23.40cm to four significant figures. What is the maximum error in the measurement?
  Options:
  A) 0.05cm
  B) 0.5cm
  C) 0.045cm
  D) 0.005cm
  E) 0.004cm
  Show Answer
  The correct answer is D .
• Question 1260: The arithmetic mean of the ages of 30 pupils in a class is 15.3 years. One boy leaves the class and one girl is enrolled, and the new average age of 30 pupils in the class becomes 15.2 years. How much older is the boy than the girl? Options:
  A) 30 years
  B) 6 years
  C) 9 years
  D) 3 years
  E) 1 year
  Show Answer
  The correct answer is D .