Question: an alloy is to contain steel and iron in the ratio 5 : 2 . the iron required to be melted with 35 kg of steel is ?
A) 12 kg
B) 14 kg
C) 15 kg
D) 20 kg
E) 18 kg
Correct answer: B
Grade: 6 | Topic: Ratios and proportions | Difficulty: Medium | Standard: 6.RP.A.3