Jamb Mathematics Past Questions and Answers

Question 476:

• JAMB 1978

The sum of \(3\frac{7}{8}\) and \(1\frac{1}{3}\) is less than the difference between \(\frac{1}{8}\) and \(1\frac{2}{3}\) by:

A. 3\(\frac{2}{3}\)
B. 5\(\frac{1}{4}\)
C. 6\(\frac{1}{2}\)
D. 8
E. 8\(\frac{1}{8}\)

Question 477:

• JAMB 1978

Multiply (x + 3y + 5) by (2x2 + 5y + 2)

A. 2x² + 3yx² + 10xy + 15y² + 13y + 10x² + 2x + 10
B. 2x³ + 6yx² + 5xy + 15y² + 31y + 5x² + 2x + 10
C. 2x³ + 6xy² + 5xy + 15y² + 12y + 10x² + 2x = 10
D. 2x² + 6xy² + 5xy + 15y² + 13y + 10x² + 2x + 10
E. 2x³ + 2yx² + 10xy + 10y² + 31y + 5x² + 10

Question 478:

• JAMB 1978

Arrange \(\frac{3}{5}\),\(\frac{9}{16}\), \(\frac{34}{59}\) and \(\frac{71}{97}\) in ascending order of magnitude.

A. \(\frac{3}{5}\), \(\frac{9}{16}\), \(\frac{34}{59}\), \(\frac{71}{97}\)
B. \(\frac{9}{16}\), \(\frac{34}{59}\), \(\frac{3}{5}\) , \(\frac{71}{97}\)
C. \(\frac{3}{5}\), \(\frac{9}{16}\), \(\frac{71}{97}\), \(\frac{34}{59}\)
D. \(\frac{9}{16}\), \(\frac{3}{5}\), \(\frac{71}{97}\), \(\frac{34}{59}\)

Question 479:

• JAMB 1978

The sum of the progression is 1 + x + x2 + x3 + ......

A. \(\frac{1}{1 - x}\)
B. \(\frac{1}{1 + x}\)
C. \(\frac{1}{x - 1}\)
D. \(\frac{1}{x}\)

Question 480:

• JAMB 1978

The number of telephone calls N between two cities A and B varies directly as the population P\(_{A}\), P\(_B\) respectively and inversely as the square of the distance D between A and B. Which of the following equations represents this relation?

A. N = \(\frac{kp_A}{D^2} + {cp_B}{D^2}\)
B. N = \(\frac{k P_{A} P_{B} }{D^2}\)
C. N = \(\frac{kD_AP_D}{B^2}\)
D. N = \(\frac{kD^2_AP_D}{B}\)