The cost of maintaining a car is partly constant and partly varies as the distance traveled in a given month. The cost for a particular month is 125naire when the cost is 350naire fund the cost for a journey of 16000km and the distance travelled,if the cost is 230naire

Using a scale that has increments that are somewhat large, you could get an error if you reach half of the measuring unit. This is because when you arrive at a measurement greater than half of the measuring unit, you would have to round it up. Therefore, the greatest possible error when measuring to the nearest quarter of an inch is 1/8 inch.