A number is doubled and 8 is added. If the resultant is trebled, it becomes 84. What is that number? Choose the most appropriate option:
A) 10	B) 6	C) 8	D) None of these	E) Cannot be determined
Solution   Let the number be x.   Then, 3(2x + 8)	‹=› 84   ‹=› 2x+8 = 28   ‹=› 2x= 20   x= 10.   10nswer 10
<result>A</result>
A number is doubled and 8 is added. If the resultant is trebled, it becomes 84. What is that number?