??? ?? ????? ??% + ?? ???? ???? ? ???? | ????? | ? ??

12% of 980 - ?% of 450 = 30% of 227

If 1 is coded as $, 5 is coded as % , 9 is coded as = 3 is coded as + , 7 is coded as # and 4 is codded as ? what will be the correct form of the number 435971? 1) ?+%=#$ 2) ?+%$=# 3) ?+=%#$ 4) $#=%+? 5) None of these

If m% of m + n % of n = 2 % of (m xx n) , then what percentage of m is n?