Andrew investe 12 percent of his March earnings. In April he earned 20 percent more than he did in March, and he invested 9 percent of his April earnings. The amount he invested in April was what percent of the amount he invested in March?  Pick one:
A) 80%	B) 90%	C) 100%	D) 110%	E) 120%
Let Andrew's March earnings be 100 --&gt; Amount invested = 12% of 100 = 12   Andrews April earning = 1.2 * 100= 
<gadget id="calculator">1.2 * 100</gadget>
<output>120</output>
120 --&gt; Amount invested= 9% of 120 = 10.8   Amount invested in April = (10.8/12)*100 = (108/120)*100= 
<gadget id="calculator">(108/120)*100</gadget>
<output>90</output>
90% of the amount invested in March   Answer: 90%
<result>B</result>
Andrew investe 12 percent of his March earnings. In April he earned 20 percent more than he did in March, and he invested 9 percent of his April earnings. The amount he invested in April was what percent of the amount he invested in March?