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This is my opinion..Just once,because if you subtract 5 to 25 it will be not 25 anymore..
Only 1 time.
just one time, it will no longer be 25 after we subtract 5 from it
u can do it as many times as you wish..it will always give 20!
only one time
before i looked at the answer i had no clue and whan i looked at it i had to think about it for a bit.
good one!! :)
even i concluded 5 but its just inly 1 time