NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 586:

• JAMB 2016

Given U = {x: x is a positive integer less than 15} and P = {x: x is even number from 1 to 14}. Find the compliment of P.

A. {1, 3, 5, 7, 9, 11, 13, 15}
B. {2, 3, 5, 7, 9, 11, 13}
C. {1, 3, 5, 7, 9, 11, 13}
D. {2, 3, 5, 7, 11, 15}

Question 587:

• JAMB 2016

Rationalize \(\frac{\sqrt{6} - \sqrt{4}}{\sqrt{6} + \sqrt{4}}\)

A. 5 + 2 \(\sqrt{6}\)
B. 5 - 4 \(\sqrt{6}\)
C. 5 + 4 \(\sqrt{6}\)
D. 5 - 2 \(\sqrt{6}\)

Question 588:

• JAMB 2020

Evaluate (212)\(_3\) - (121)\(_3\) + (222)\(_3\)

A. (313)\(_3\)
B. (1000)\(_3\)
C. (1020)\(_3\)
D. (1222)\(_3\)

Question 589:

• JAMB 2020

Reach each number to two significant figures and then evaluate \(\frac{0.02174 \times 1.2047}{0.023789}\)

A. O
B. 0.9
C. 1.1
D. 1.2

Question 590:

• JAMB 2020

Four boys and ten girls can cut a field first in 5 hours. If the boys work at \(\frac{5}{4}\) the rate at which the girls work, how many boys will be needed to cut the field in 3 hours?

A. 180
B. 60
C. 25
D. 20