30% of $120
Soln: 30/100 × 120
12 ×3= $36
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30% of 400 dollars = 400 dollars * 30/100 = 120 dollars.
15 percent of 120 dollars is 18 dollars. If you take it away from the 120 dollars, there are 102 dollars remaining.
30 percent means 30/100 = 0.30 30% of 120 is 0.30 x 120 = 36
120 dollars.
40% of 120 dollars = 120*40/100 = 48 dollars. So 40% off = 120 - 48 = 72 dollars.