Year :
2005
Title :
Mathematics
Exam :
NECO - BECE
Paper 1 | Objectives
1 - 10 of 36 Questions
| # | Question | Ans |
|---|---|---|
| 1. |
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 Detailed SolutionArea of a rhombus = \(\frac{pq}{2}\)where p and q are the two diagonals of the rhombus. |
|
| 2. |
Mohammed is 8 years older than Joy now. In five years’ 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 |
B |
| 3. |
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) |
A |
| 4. |
Simplify (6 - x - x2) ÷ (x2 - 4) A. (3 + x) ÷ (x + 2) B. (x - 3) ÷ (x - 2) C. (x - 3) ÷ (x + 3) D. (3 - x) ÷ (x + 2) E. (3 - x) ÷ (x - 2) Detailed Solution(6 - x - x2) = ( 2 - x ) ( 3 + x )divides ( x^2 - 4 ) = ( -2 - x ) ( 2 - x ) = ( 3 + x ) / ( x + 2) |
|
| 5. |
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 |
E |
| 6. |
In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse. A. 24m B. 14m C. 12m D. 7m E. 6m |
A |
| 7. |
For what value(s) of x is the expression (x2 + 15x + 50) ÷ (x - 5) not defined A. -5, -10 B. -10 C. -5 D. 5 E. 10, 5 |
D |
| 8. |
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 |
E |
| 9. |
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. \(\frac{2}{9}\) |
D |
| 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 |
D |
| 1. |
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 Detailed SolutionArea of a rhombus = \(\frac{pq}{2}\)where p and q are the two diagonals of the rhombus. |
|
| 2. |
Mohammed is 8 years older than Joy now. In five years’ 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 |
B |
| 3. |
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) |
A |
| 4. |
Simplify (6 - x - x2) ÷ (x2 - 4) A. (3 + x) ÷ (x + 2) B. (x - 3) ÷ (x - 2) C. (x - 3) ÷ (x + 3) D. (3 - x) ÷ (x + 2) E. (3 - x) ÷ (x - 2) Detailed Solution(6 - x - x2) = ( 2 - x ) ( 3 + x )divides ( x^2 - 4 ) = ( -2 - x ) ( 2 - x ) = ( 3 + x ) / ( x + 2) |
|
| 5. |
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 |
E |
| 6. |
In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse. A. 24m B. 14m C. 12m D. 7m E. 6m |
A |
| 7. |
For what value(s) of x is the expression (x2 + 15x + 50) ÷ (x - 5) not defined A. -5, -10 B. -10 C. -5 D. 5 E. 10, 5 |
D |
| 8. |
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 |
E |
| 9. |
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. \(\frac{2}{9}\) |
D |
| 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 |
D |