Find the length of a chord which subtends an angle of 90° at the centre of a circle whose radius is 8 cm.

If log104 = 0.6021, evaluate log1041/3

Calculate the time taken for ₦3000 to earn ₦600 if invested at 8% simple interest

Convert 2710 to another number in base three

Evaluate \( \frac{1.25 \times 0.025}{0.05} \), correct to 1 decimal place

If \(S = \sqrt{t^2 - 4t + 4}\), find t in terms of S

Simplify \( \frac{3^{-5n}}{9^{1-n}} \times 27^{n+1} \)

3 girls share a number of apples in the ration 5:3:2. If the highest share is 40 apples, find the smallest share

Simplify \( \frac{\sqrt{5}(\sqrt{147}-\sqrt{12})}{\sqrt{15}} \)