A number increased by 15% gives 1150. The number is	Choose the correct choice from the following options
A) 250
B) 1000
C) 450
D) 500
E) 520

Rationale: "formula = total = 100 % , increse = ` ` + ' ' decrease = ` ` - ' ' a number means = 100 % that same number increased by 15 % = 115 % 115 % - - - - - - - > 1150 ( 115 × 100 = 1150 ) 100 % - - - - - - - > 1000 ( 100 × 100 = 1000 ) b )"
Answer: B