Havid has d books, which is 3 times as many as Jeff and 1/2 as many as Paula. How many books do the three of them have altogether, in terms of d?  Choose the correct choice from the following:
A) 5/6*d
B) 7/3*d
C) 10/3*d
D) 7/2*d
E) 9/2*d
Havid has d books;   Jeff has d/3 books;   Paula has 2d books;   Total = d+d/3+2d=10d/3.   Answer: 10/3*d.
<result>C</result>
Havid has d books, which is 3 times as many as Jeff and 1/2 as many as Paula. How many books do the three of them have altogether, in terms of d?