Rohit spent 50 percent of his earning last month on rent and 30 percent less than what he spent on rent to purchase a new dishwasher. What percent of last month's earning did John have left over?
Choices.
A) 15%	B) 25%	C) 35%	D) 55%	E) 20%
SayRohit's earning last month was $100.   Rohit spent 50 percent of his earning last month on rent --&gt; $50 on rent;   30 percent less than what he spent on rent to purchase a new dishwasher --&gt; $50*0.7= 
<gadget id="calculator">50*0.7</gadget>
<output>35</output>
$35 on the dishwasher.   Left over amount   100 - (50 + 35)= 
<gadget id="calculator">  100 - (50 + 35)</gadget>
<output>15</output>
$15.   15%nswer: 15%.
<result>A</result>
Rohit spent 50 percent of his earning last month on rent and 30 percent less than what he spent on rent to purchase a new dishwasher. What percent of last month's earning did John have left over?