A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. If there are 30 5-rupee notes, 20-10-rupee notes, find the number of one-rupee notes.  Choose the correct choice
A) 180	B) 150	C) 130	D) 200	E) 170
x+150+200=480, x=480-350= 
<gadget id="calculator">480-350</gadget>
<output>130</output>
130, Ans: 130
<result>C</result>
A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. If there are 30 5-rupee notes, 20-10-rupee notes, find the number of one-rupee notes.