The instructions state that Deepthi needs 4/17 square yards of one type of material and 3/10 square yards of another type of material for a project. She buys exactly that amount. After finishing the project, however, she has 9/30 square yards left that she did not use. What is the total amount of square yards of material Deepthi used?  Pick:
A) 1/12
B) 4/17
C) 2/3
D) 1 1/9
E) 2 1/9
Total bought = 4/17+3/10   left part 9/30---&gt;3/10   so used part 4/17+3/10-3/10=4/17   ANSWER:4/17
<result>B</result>
The instructions state that Deepthi needs 4/17 square yards of one type of material and 3/10 square yards of another type of material for a project. She buys exactly that amount. After finishing the project, however, she has 9/30 square yards left that she did not use. What is the total amount of square yards of material Deepthi used?