Jamb Mathematics Past Questions and Answers

Question 671:

• JAMB 1982

Simplify 3 - 2 \(\div\) \(\frac{4}{5}\) + \(\frac{1}{2}\)

A. 1\(\frac{3}{4}\)
B. -1
C. 1\(\frac{3}{10}\)
D. 1
E. 1\(\frac{9}{10}\)

Question 672:

• JAMB 1982

If N560.70 is shared in the ratio 7 : 2 : 1, what is the smallest share?

A. N392.49
B. N56.70
C. N113.40
D. N112.14
E. N56.07

Question 673:

• JAMB 1982

Seven years ago, the age of a father was three times that of his son, but in six years time the age of the son will be half that of his father, representing the present ages of the father and son by x and y, respectively, the two equations relating x and y are

A. 3y - x = 0; 2y - x = 0
B. 3y - x = 14; x - 2y = 6
C. 3y - x =7; x - 2y = 6
D. 3y - x = 14; y - 2x = 6
E. X + 3y = 7; x = 2y = 12

Question 674:

• JAMB 1982

The factors of 6x - 5 - x2 are

A. -(x + 3)(x + 2)
B. (x + 5)(x + 1)
C. (x - 5)(1 - x)
D. (x + 1)(x + 5)

Question 675:

• JAMB 1982

The solution of the quadratic equation bx2 + cx + a = 0 is given by

A. X = b \(\pm\) \(\frac{\sqrt{b^2 - 4ac}}{2a}\)
B. X = c \(\pm\) \(\frac{\sqrt{b^2 - 4ab}}{2b}\)
C. X = -c \(\pm\) \(\frac{\sqrt{c^2 - 4ab}}{2b}\)
D. X = -b \(\pm\) \(\frac{\sqrt{b^2 - 4ac}}{2b}\)