Jamb Mathematics Past Questions and Answers

Question 481:

• JAMB 1978

Find the square root of 170 - 20\(\sqrt{30}\)

A. 2 \(\sqrt{10}\) - 5\(\sqrt{3}\)
B. 2 \(\sqrt{5}\) - 5\(\sqrt{6}\)
C. 5 \(\sqrt{10}\) - 2\(\sqrt{3}\)
D. 3 \(\sqrt{5}\) - 8\(\sqrt{6}\)

Question 482:

• JAMB 1978

If x2 + 4 = 0, then x ?

A. 4
B. -4
C. 2
D. -2
E. None of the above

Question 483:

• JAMB 1978

What is the number whose logarithm to base 10 is 2.3482?

A. 223
B. 2228
C. 2.235
D. 22.37
E. 0.2229

Question 484:

• JAMB 1978

Five years ago, a father was 3 times as old as his son, now their combined ages amount to 110years. thus, the present age of the father is

A. 75 years
B. 60 years
C. 98 years
D. 80 years
E. 105 years

Question 485:

• JAMB 1978

If y = 2x² + 9x - 35. Find the range of values for which y < 0.

A. 7 < x < \(\frac{5}{2}\)
B. -5 < 7 < x
C. -7 < x < 5
D. -7 < x < \(\frac{5}{2}\)