MCQ Practice Mathematics 📖 If x : y = 2 : 3, and m : n = 9 : 4, find the ratio xn : ym. A 2 : 3 B 27 : 8 C 3 : 2 D 8 : 27 Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up PreviousIf there are 300 calories in 100 grams of a certain food, how many calories are there in a 30 gram portion of that food? NextIf x : y = 5 : 3, then (8x – 5y) : (8x + 5y) =?