-50
True, 50 is twice as much as 25. This is because when you multiply 25 by 2, you get 50. Therefore, 50 represents double the amount of 25.
25
One quarter to one half. Or 50% - 25% + x Hence x = 50% - 25% = 25% (again).
$25-$50
50
25-50 $
-25 - 25 = -50-25 - 25 = -50-25 - 25 = -50-25 - 25 = -50
50 grams
25-50 USD
25-50 dollars
$1 = approx Rs 50 so 25 cent = Rs 50 / 4