Question 106:

• JAMB 2018

A box contains two red balls and four blue balls. A ball is drawn at random from the box and then replaced before a second ball is drawn. Find the probability of drawing two red balls.

A. \(\frac{2}{3}\)
B. \(\frac{1}{3}\)
C. \(\frac{1}{4}\)
D. \(\frac{1}{9}\)

Question 107:

• JAMB 2018

Which one of the following gives the members of the set A1 n B n C?

A. Φ
B. {s}
C. {t, u}
D. {y, z}

Question 108:

• JAMB 2018

What is the modal age?

A. 4
B. 5
C. 6
D. 7

Question 109:

• JAMB 2018

Convert 0.04945 to two significant figures

A. 0.040
B. 0.049
C. 0.050
D. 0.49

Question 110:

• JAMB 2018

Calculate 243\(_{six}\) — 243\(_{five}\) expressing your answer in base 10

A. Zero
B. 1
C. 26
D. 46