To find what time simply add all of the minutes together and subtract. All of the steps take 100 minutes to do. 11.10 am is 670 minutes. So 670 - 100 = 570 then divide by 60 to get the time ie 9:30 am
By the Pythagorean theorem, .. x^2 +(x -46)^2 = (x +4)^2 .. 2x^2 -92x +2116 = x^2 +8x +16 .. x^2 -100x +2100 = 0 .. (x -50)^2 -400 = 0 .. x = 50 ±20 . . . . . only x=70 makes any sense in the problem