Find the Iength of a diagonal of a square whose area is 288cm2.
- A. 24cm
- B. 48cm
- C. 95cm
- D. 100cm
- E. 124cm
A flagpole is placed at the top of a tower. The angles of elevation of the bottom and top of the flagpole from a point on the ground 10m away are 40Β° and 50Β° respectively. Find the length of the flagpole.
- A. 1.8m
- B. 3.5m
- C. 8.4m
- D. 11.9m
- E. 17.3m
Find the value of 2a – b if a + b = 8 and 4a – b = 22
- A. 2
- B. 4
- C. 6
- D. 8
- E. 10
What is the positive difference between the squares of 2.5 and 2.1 to 1 significant figures?
- A. β 2.0
- B. β 184
- C. -1.84
- D. 2
- E. 18.4
If A(I,2,3,…,10) ; B = (-5,-4,…..,-1) ; C = (-1, 0, 1, 2,….5) List all the elements in (B βͺ C) β© A
- A. (-1,2,...5)
- B. (-1,1,....5)
- C. (1,2,..5)
- D. (2,3,...10)
- E. (1,2,...10)
A car dealer sells a car and makes a profit of 15%. If the car costs N320,000.00, how much did he sell the car?
- A. N272,000.00
- B. N296,000.00
- C. N300,000.00
- D. N368,000.00
- E. N400,000.00
A bag contains 4 blue and 8 red identical balls. If two balls are picked at random with replacement, what is the probability of picking two balls of different colours?
- A. 1
- B. \(\frac{13}{26}\)
- C. \(\frac{5}{18}\)
- D. \(\frac{4}{9}\)
- E. \(\frac{2}{9}\)
Evaluate log 18 + log6 – log16\(^{\frac{1}{2}}\)
- A. log 3
- B. log 9
- C. log 20
- D. 3 log 2
- E. 3 log 3
For what value(s) of x is the expression (x2 + 15x + 50) Γ· (x – 5) not defined
- A. -5, -10
- B. -10
- C. -5
- D. 5
- E. 10, 5
In Ξ ABC, A = 60Β°, C = 90Β° and AC = 12m. Find the Length of the hypotenuse.
- A. 24m
- B. 14m
- C. 12m
- D. 7m
- E. 6m
Find the absolute mean deviation of the sample 10, 12, 14, 11, 13.
- A. 14.6
- B. 14
- C. 12
- D. 6.2
- E. 1.2
Simplify (6 – x – x2) Γ· (x2 – 4)
- A. (3 + x) Γ· (x + 2)
- B. (x - 3) Γ· (x - 2)
- C. (x - 3) Γ· (x + 3)
- D. (3 - x) Γ· (x + 2)
- E. (3 - x) Γ· (x - 2)
If (x – a) is a factor of bx – ax + x2 – ab, what is the other factor?
- A. (x + b)
- B. (b - a)
- C. (x - a)
- D. (a + b)
- E. (a - b)
Mohammed is 8 years older than Joy now. In five yearsβ time he will be twice as old as Joy. How old is Joy now?
- A. 1\(\frac{1}{2}\)years
- B. 3years
- C. 4\(\frac{1}{2}\)years
- D. 6 years
- E. 8 years
The diagonals of a rhombus are 6cm and 8cm. Find the area of the rhombus.
- A. 96cm2
- B. 48cm2
- C. 24cm2
- D. 0.14cm2
- E. 12cm2