An alloy is to contain Steel and Iron in the ratio 5:2. The Iron required to be melted with 35kg of Steel is?  Select the correct option:
A) 12kg  B) 14kg  C) 15kg  D) 20kg  E) 18kg
Let the required quantity of steel be x kg   5:2::35:x   5x =2*35   x = 14kg   Answer is 14kg
<result>B</result>
An alloy is to contain Steel and Iron in the ratio 5:2. The Iron required to be melted with 35kg of Steel is?