Jamb Mathematics Past Questions and Answers

Question 546:

• JAMB 1979

On each market day Mrs. Bassey walks to the market from her home at a steady speed. This journey normally takes her 2 hours to complete. She finds, however, that by increasing her usual speed by 1 km/hr she can save 20 minutes. Find her usual speed in km/hr

A. 1\(\frac{2}{3}\)
B. 2
C. 5
D. 6
E. 10

Question 547:

• JAMB 1979

Solve the simultaneous linear equations: 2x + 5y = 11, 7x + 4y = 2

A. X = -8, y = 1
B. X = -2, y = 4
C. X = \(\frac{-34}{27}\), y = \(\frac{73}{27}\)
D. X = 7, y = -9

Question 548:

• JAMB 1979

If x³ - 12x - 16 = 0 has x = -2 as a solution then the equaion has

A. X = -4 as a solution also
B. 3 roots all different
C. 3 roots with two equal and the third different
D. 3 roots all equal
E. Only one root

Question 549:

• JAMB 1979

Find the value of (4^{\(\frac{1}{2}\)})⁶

A. 1
B. 2
C. 4
D. 6
E. 8

Question 550:

• JAMB 1979

Find the value of log₁₀\(\frac{1}{40}\), given that log₁₀4 = 0.6021

A. 1.3979
B. 2.3979
C. 1.6021
D. 2.6021