Here is the answer to the puzzle from the reel, with the working explained below.

Question 1

Where is 7504 in the grid?

Correct answer: row 7, column 1

Count rows from the top and columns from the left, starting at 1. The number 7504 appears once, at row 7, column 1. The highlighted cell below shows its exact position.

The marked solution

75017508780495037804
55044504150485047584
75029534760475841504
76049504750075027574
75097554756465043504
85847524300475347544
75047509750374047506
21047505450672043504
70047804250475077524
70047404753475017204