"exceed 10,150"

So it can't be equal to 10,150, Since its round to the nearest 50, then 10,200, 24 would round down, 25 would round up. so 10,150 + 25 = 10,175, round up would be 10,200.

EDIT: quote from "mr fantastic", "I cannot stand answers to questions like these expressed as a percentage. You should be giving a number correct to four decimal places that lies between 0 and 1."

.0400592030528 = .0401