I am using Moodle 3.6 Is there any way of setting a numerical question to base 60. I want the students to give time based answers and i want to give them a tolerance. if the answer is close to the hour i am unable to give a tolerance as the accepted answer would not look like a time.
for example the students are asked to calculate the tides time in order for a ship to pass under a bridge. The answer let say is 15:54, but the ship would be able to pass under that bridge between 15:39 to 16:09 so i need all of the times between to be acceptable answers. if i were to use standard tolerances it would accept 1539-1569 the latter not being a real time.