Jamb Mathematics Past Questions and Answers

Question 541:

• JAMB 1979

Simplify 2\(\frac{5}{12}\) - 1\(\frac{7}{8}\) x \(\frac{6}{5}\)

A. \(\frac{1}{6}\)
B. \(\frac{13}{20}\)
C. \(\frac{11}{30}\)
D. \(\frac{9}{4}\)
E. \(\frac{5}{3}\)

Question 542:

• JAMB 1979

One of the following statements is wrong. Which is it?

A. If a triangle is equiangular then it is also equilateral
B. If a triangle is equilateral then it is also then it is also equiangular
C. If two triangles are similar then they are also congurent
D. The sum of the interior angles of any triangle is 180 degrees

Question 543:

• JAMB 1979

PQRS is a cyclic quadrilateral with PQ as diameter of the circle. If < PQS = 15^o find < QRS

A. 75^o
B. 37\(\frac{1}{2}\)^o
C. 127\(\frac{1}{2}\)^o
D. 105^o

Question 544:

• JAMB 1979

Make x the subject of the equation a(b + c) + \(\frac{5}{d}\) - 2 = 0

A. C = \(\frac{2d - 5 - b}{ad}\)
B. C = \(\frac{2d - 5 - abd}{ad}\)
C. C = \(\frac{2d - 5 - ab}{ad}\)
D. C = \(\frac{5 - 2d - b}{ad}\)

Question 545:

• JAMB 1979

Which of the following values of the variable x, (a)x = 0, (b)x = -3, (c)x = 9, satisfy the inequalities 0 < \(\frac{x + 3}{x - 1}\) < 2?

A. (a), (b), (c)
B. (c)
C. None of the choices
D. All of the above