Jamb Mathematics 1985 Past Questions and Answers

Question 1:

• JAMB 1985

If three numbers P, Q, R are in ratio 6 : 4 : 5, find the value of \(\frac{3p - q}{4q + r}\)

A. \(\frac{3}{2}\)
B. \(\frac{2}{3}\)
C. 2
D. 3
E. 18

Question 2:

• JAMB 1985

If three numbers P, Q, R are in ratio 6 : 4 : 5, find the value of \(\frac{3p - q}{4q + r}\)

A. \(\frac{3}{2}\)
B. \(\frac{2}{3}\)
C. 2
D. 3
E. 18

Question 3:

• JAMB 1985

Arrange the following numbers in ascending order of magnitude \(\frac{6}{7}\), \(\frac{13}{15}\), 0.8650

A. \(\frac{6}{7}\) < 0.865 < \(\frac{13}{15}\)
B. \(\frac{13}{15}\) < \(\frac{6}{7}\) < 0.865
C. \(\frac{6}{7}\) < \(\frac{13}{15}\) < 0.865
D. 0.865 < \(\frac{6}{7}\) < \(\frac{13}{15}\)

Question 4:

• JAMB 1985

a sum of money was invested at 8% per annum simple interest. If after 4 years the money amounts to N330.00. Find the amount originally invested

A. N180.00
B. N165.00
C. N150.00
D. N250.00
E. N200.00

Question 5:

• JAMB 1985

In the equation below, Solve for x if all the numbers are in base 2: \(\frac{11}{x}\) = \(\frac{1000}{x + 101}\)

A. 101
B. 11
C. 110
D. 111
E. 10