Jamb Mathematics Past Questions and Answers

Question 601:

• JAMB 1980

Solve the system of equation 2^{x + y} = 32, 3^{3y - x} = 27

A. (3, 2)
B. (-3, 2)
C. (3, -2)
D. (-3, -2)
E. (2, 2)

Question 602:

• JAMB 1980

Simplify the given expression \(\sqrt{\frac{1 - cos x}{1 + cos x}}\)

A. \(\frac{1 - cos x}{sin x}\)
B. 1 - cos x
C. Sin x
D. 1 + cos x
E. \(\frac{1 + cos x}{sin x}\)

Question 603:

• JAMB 1980

Find the area of the curved surface of a cone whose base radius is 6cm and whose height is 8cm. (take \(\pi\) = \(\frac{22}{7}\))

A. 188.57cm²
B. 1320cm²
C. 188cm²
D. 188.08cm²
E. 10cm²

Question 604:

• JAMB 1980

Solve the equation for the positive values of \(\theta\) less than 360^o. 3 tan \(\theta\) + 2 = -1

A. 135^o or 315^o
B. 45^o or 135^o
C. 315^o or 180^o
D. 315v + 45^o
E. 360^o or 315^o

Question 605:

• JAMB 1980

Given log 2 = 0.69, log3 = 1, 10 and log7 = 1.90, all to a fixed base, find log 10.5 to the same base without using tables.

A. 1.03
B. 2.31
C. 3.69
D. 10.5
E. 25