The progress made by -8 rank by solving rank 1 que will be 640 : 10 * 8 * 8, so rank will be -2 and remaining progress will be 40

Have the same issue. I think the test has a typo or something

was this issue resolved

Thanks!

All of the ?s in an expression will represent the same digit (0-9), and it won't be one of the other given digits in the expression.