Question 7
A rectangular tank measuring 20cm by 15cm by 17cm is filled with water. When an iron bar is placed in the tank, the water level rises by 10cm. Find the volume of the iron bar.
**Editorial note for this self-study exercise:** For this self-study interpretation, the tank initially contains water but is not full to the brim. Its horizontal internal base is 20 cm by 15 cm and its height is 17 cm. Assume at least 10 cm of headroom initially, no overflow, and a fully submerged iron bar. Enter the bar volume in cubic centimeters as a number.
**Editorial note for this self-study exercise:** For this self-study interpretation, the tank initially contains water but is not full to the brim. Its horizontal internal base is 20 cm by 15 cm and its height is 17 cm. Assume at least 10 cm of headroom initially, no overflow, and a fully submerged iron bar. Enter the bar volume in cubic centimeters as a number.