43
Divide: \(a^{3x} – 26a^{2x} + 156a^{x} – 216\) by \(a^{2x} – 24a^{x} + 108\).
- A. ax - 2
- B. ax + 2
- C. ax - 8
- D. ax - 6
44
Evaluate \(\frac{(0.14^2 \times 0.275)}{7(0.02)}\) to 3 decimal places.
- A. 0.039
- B. 0.385
- C. 0.033
- D. 0.038
45
Find the principal which amounts to N5,500 at a simple interest in 5 years at 2% per annum.
- A. N4,900
- B. N5,000
- C. N4,700
- D. N4,800
46
If \(x = \frac{y}{2}\),evaluate\(\left(\frac{x^{3}}{y^{3}}+\frac{1}{2}\right) \div \left(\frac{1}{2} – \frac{x^{2}}{y^{2}}\right)\)
- A. 5/8
- B. 5/2
- C. 5/32
- D. 5/16
47
A car dealer bought a second-hand car for N250,000 and spent N70,000 refurbishing it. He then sold the car for N400,000. What is the percentage gain?
- A. 60%
- B. 32%
- C. 25%
- D. 20%
48
Given that \(p = 1 + \sqrt{2}\) and \(q = 1 – \sqrt{2}\), evaluate \(\frac{p^{2} – q^{2}}{2pq}\).
- A. 2(2+√2)
- B. -2(2+√2)
- C. 2√2
- D. -2√2
49
50
Evaluate 21.05347 – 1.6324 x 0.43 to 3 decimal places
- A. 20.980
- B. 20.351
- C. 20.981
- D. 20.352