a person has 100 $ in 10 $ and 5 $ bill. if the 5 $ bill quantity is twice that of 10 $ bill. what is quantity of 10 $.	Choices
A) 2
B) 6
C) 7
D) 8
E) 5
<gadget id="calculator">100 / 10</gadget>
<output>10</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<result>E</result>
a person has 100 $ in 10 $ and 5 $ bill. if the 5 $ bill quantity is twice that of 10 $ bill. what is quantity of 10 $.
divide(divide(100, 10), const_2)
let amount of 10 $ be x . then amount of 5 $ be 2 x . now 5 * 2 x + 10 * x = 100 . thus x = 5 . answer : e