1.

(a) 200(b)275(c)250(d) 300

Answer»

20%=(330-x/x)*10020/100=330-x/xx/5=330-xx+x/5=3305x+x/5=3306x/5=330

6x=330*5

x=330*5/6

x=55*5=275 (b)275



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