The 3 secret digit numbers are 4, 7, and 8. Then the combination lock with 3 secret digits is 478.
What are permutation and combination?
A permutation is an act of arranging the objects or elements in order. Combinations are the way of selecting objects or elements from a group of objects or collections, in such a way the order of the objects does not matter.
You have a combination lock with 3 secret digits.
362 All digits are wrong then 3, 6, and 2 should not be there.
624 One digit is right but in the wrong place. Then 4 digit is right.
841 Two digits are right but both are in the wrong place. Then the place of 4 should be first.
128 One digit is right and in its place. Then the first place is occupied by 4 so 1 is incorrect. Then the third digit is 8.
157 One digit is right but in the wrong place. Then in the second place, the wrong digit is there then there is 7 in the second place.
The combination lock with 3 secret digits is 478.
More about the permutation and the combination link is given below.
https://brainly.com/question/11732255