a cycle is bought for rs. 900 and sold for rs. 990, find the gain percent? Pick one.
A) 39 %
B) 20 %
C) 23 %
D) 74 %
E) 10 %
<gadget id="calculator">990 - 900</gadget>
<output>90</output>

<gadget id="calculator">90 / 900</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 100</gadget>
<output>10</output>

<result>E</result>
a cycle is bought for rs. 900 and sold for rs. 990, find the gain percent?
multiply(divide(subtract(990, 900), 900), const_100)
"900 - - - - 90 100 - - - - ? = > 10 % answer : e"