Each Machine of type A has 4 steel parts and 2 chrome parts. Each machine of type B has 2 steel parts and 1 chrome parts. If a certain group of type A and type B machines has a total of 30 steel parts and 33 chrome parts, how many machines are in the group
Answers
A) 12  B) 13  C) 14  D) 16  E) 19
Look at the below representation of the problem:   Steel Chrome total   A 4 2 30 &gt;&gt;no. of type A machines=30/6= 
<gadget id="calculator">30/6</gadget>
<output>5</output>
5   B 2 1 33 &gt;&gt;no. of type B machines=33/3= 
<gadget id="calculator">33/3</gadget>
<output>11</output>
11   So the answer is 16 i.e D.   Hope its clear .
<result>D</result>
Each Machine of type A has 4 steel parts and 2 chrome parts. Each machine of type B has 2 steel parts and 1 chrome parts. If a certain group of type A and type B machines has a total of 30 steel parts and 33 chrome parts, how many machines are in the group