If decreasing 120 by x % gives the same result as increasing 40 by x %, then x % of 210 is what percent less than (x + 20) % of 180 ?

Questions :

If decreasing 120 by x % gives the same result as increasing 40 by x %, then x % of 210 is what percent less than (x + 20)% of 180 ?

Options :

• 33 1/3%
• 16 2/3%
• 18%
• 20%

correct answer : b)