Each Machine of type A has 3 steel parts and 2 chrome parts. Each machine of type B has 2 steel parts and 4 chrome parts. If a certain group of type A and type B machines has a total of 50 steel parts and 66 chrome parts, how many machines are in the group Select
A) 11
B) 21
C) 31
D) 61
E) 51
Look at the below representation of the problem:   Steel Chrome total   A 3 2 50 &gt;&gt;no. of type A machines=50/5= 
<gadget id="calculator">50/5</gadget>
<output>10</output>
10   B 2 4 66 &gt;&gt;no. of type B machines=66/6= 
<gadget id="calculator">66/6</gadget>
<output>11</output>
11   So the answer is 21 i.e B.   Hope its clear .
<result>B</result>
Each Machine of type A has 3 steel parts and 2 chrome parts. Each machine of type B has 2 steel parts and 4 chrome parts. If a certain group of type A and type B machines has a total of 50 steel parts and 66 chrome parts, how many machines are in the group