A number increased by 10% gives 550. The number is
Answers
A) 250
B) 500
C) 450
D) 500
E) 520

Rationale: "formula = total = 100 % , increse = ` ` + ' ' decrease = ` ` - ' ' a number means = 100 % that same number increased by 10 % = 110 % 110 % - - - - - - - > 550 ( 110 × 5 = 550 ) 100 % - - - - - - - > 500 ( 100 × 5 = 500 ) b )"
Answer: B