Final answer:
The 85% water concentration inside the cell can be found by subtracting the concentration of solute from 100%. The water is moving out of the cell from an area of higher water concentration to a lower water concentration, indicating a hypertonic direction. Therefore, the solution is hypertonic.
Step-by-step explanation:
In this scenario, the cell has a 10% glucose solution on the inside and a 20% glucose solution on the outside. We are asked to determine the value of 85% water inside the cell, the direction of water movement, and the type of solution. To find the amount of water inside the cell, we subtract the concentration of glucose from 100%: 100% - 10% = 90% water concentration inside the cell.
Since the water is moving out of the cell, it is moving from an area of higher water concentration (inside the cell) to an area of lower water concentration (outside the cell). Therefore, water is flowing in the hypertonic direction. Based on the information provided, we can conclude that the solution is hypertonic since the concentration of solute outside the cell is higher than inside the cell.