450kg of maize has a moisture content of 15% on dry basis. How much water does it contain?

Sure, here's how to calculate the amount of water in the maize:

1. First, understand that "moisture content on a dry basis" means the amount of water is expressed in relation to the dry part of the material. In this case, it means that 15% of the dry maize is water.

2. To find the weight of the dry maize, you need to know that the 450kg includes both the dry maize and the water. Since 15% of the dry maize is water, it means that 85% of the dry maize is actually maize.

3. Therefore, to find the weight of the dry maize, you can set up the equation: 0.85 * weight of dry maize = 450kg. Solving for the weight of the dry maize gives you approximately 529kg.

4. Now that you know the weight of the dry maize, you can find the weight of the water. Since 15% of the dry maize is water, you can calculate the weight of the water as: 0.15 * 529kg = approximately 79kg.

So, the maize contains approximately 79kg of water.