A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number?  Options:
A) 5
B) 8
C) 9
D) 10
E) 11
Solution   Let the number be x.	Then, 3(2x+9) = 75   ‹=› 2x+9 = 25   ‹=›2x = 16   Answer 8
<result>B</result>
A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number?