Explanation:
I think the question is mis-worded
1/3 % in decimal is .0033333
.00333 * 90 = 30 cents off making the new price $ 89.70
I think you want 1/3 off ( not 1/3 %)
1/3 of 90 is 30 dollars off....the new price would then be 90 - 30 = $60
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