### Mathematics Past Questions

3716

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. $$\frac{1}{9}$$
3717

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}
3718

If P = [$$\frac{Q(R - T)}{15}$$] $$\frac{1}{3}$$ make T the subject of the relation

• A. T = $$\frac{R + P^3}{15Q}$$
• B. T = $$\frac{R - 15P^3}{Q}$$
• C. T = $$\frac{R - 15P^3}{Q}$$
• D. T = $$\frac{15R - Q}{P^3}$$
3719

Calculate the area of an equilateral triangle of side 8cm

• A. 8√3
• B. 16
• C. 4√3
• D. 16√3
3720

The pie chart shows the monthly expenditure of a public servant. The monthly expenditure on housing is twice that of school fees. How much does the worker spend on housing if his monthly income is ₦7200?

• A. ₦1000
• B. ₦2000
• C. ₦3000
• D. ₦4000