# Mathematics Past Questions | JAMB, WAEC, NECO and Post UTME Past Questions

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### Question 5121

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.

### Options

A) $$\frac{2}{3}$$

B) $$\frac{1}{3}$$

C) $$\frac{1}{4}$$

D) $$\frac{1}{9}$$

### Question 5122

Which one of the following gives the members of the set Ac $$\cap$$ B $$\cap$$ C?

A) Φ

B) {s}

C) {t, u}

D) {y, z}

### Question 5123

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

### Options

A) T = $$\frac{R + P^3}{15Q}$$

B) T = $$\frac{R - 15P^3}{Q}$$

C) T = $$\frac{R - 15P^3}{Q}$$

D) T = $$\frac{15R - Q}{P^3}$$

### Question 5124

Calculate the area of an equilateral triangle of side 8cm

A) 8√3

B) 16

C) 4√3

D) 16√3

### Question 5125

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

### Question 5126

Approximate 0.9875 to 1 decimal place.

A) 1.1

B) 1.0

C) 0.9

D) 0.10

### Question 5127

Simplify 25$$^\frac{1}{2}$$ × 8$$^\frac{-2}{3}$$

### Options

A) 1$$\frac{1}{4}$$

B) 2$$\frac{1}{4}$$

C) 6

D) 10

### Question 5128

Add 54 $$_{eight}$$ and 67$$_{eight}$$ giving your answers in base eight

A) 111

B) 121

C) 123

D) 143