Mathematics Past Questions and Answers

Evaluate 21.05347 - 1.6324 x 0.43 to 3 decimal places

Evaluate 21.05347 - 1.6324 x 0.43 to 3 decimal places

Simplify \((\sqrt[3]{64a^{3}})^{-1}\)

Given that \(p = 1 + \sqrt{2}\) and \(q = 1 - \sqrt{2}\), evaluate \(\frac{p^{2} - q^{2}}{2pq}\).

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?