alfred buys an old scooter for $ 4700 and spends $ 800 on its repairs. if he sells the scooter for $ 6400, his gain percent is?  Select.
A) 5.45 %	B) 16.36 %	C) 7 %	D) 8.12 %	E) 10 %
<gadget id="calculator">4_700 + 800</gadget>
<output>5_500</output>

<gadget id="calculator">6_400 - 5_500</gadget>
<output>900</output>

<gadget id="calculator">900 / 5_500</gadget>
<output>9/55 = around 0.163636</output>

<gadget id="calculator">(9/55) * 100</gadget>
<output>180/11 = around 16.363636</output>

<result>B</result>
alfred buys an old scooter for $ 4700 and spends $ 800 on its repairs. if he sells the scooter for $ 6400, his gain percent is?
multiply(divide(subtract(6400, add(4700, 800)), add(4700, 800)), const_100)
"c . p . = 4700 + 800 = $ 5500 s . p . = $ 6400 gain = 6400 - 5500 = $ 900 gain % = 900 / 5500 * 100 = 16.36 % answer is b"