If cement, gravel and sand are to be mixed in 7:10:13 and 7 tons of cement is available how many tons of mixture can be produced assuming that sufficient gravel and sand is readily available.	Answers
A) 35 7/8 B) 30 C) 34 2/7 D) 34 5/7 E) 34 6/7
Cement:Gravel:Sand = 7:10:13 --&gt; total of   7+10+13= 
<gadget id="calculator">  7+10+13</gadget>
<output>30</output>
30 parts.   If we use 7 tons of cement, then we'll get  7/7*30= 
<gadget id="calculator"> 7/7*30</gadget>
<output>30</output>
30 tons of mixture.   Answer: 30.
<result>B</result>
If cement, gravel and sand are to be mixed in 7:10:13 and 7 tons of cement is available how many tons of mixture can be produced assuming that sufficient gravel and sand is readily available.