The ages of three men are in the ratio 3:4:5. If the difference between the ages of the oldest and youngest is 18 years, find the sum of the ages of the three men
Given that \(log_4 x = -3\), find x.
Given that the logarithm of a number is \(\bar{1}.8732\), find, correct to 2 significant figures the square root of the number.
A car moves at an average speed of 30kmh\(^{-1}\), how long does it take to cover 200 meters?
