MCQ Practice Mathematics 📖 72% of the students of a certain class took Biology and 44% took mathematics. If each students took Biology or Mathematics or... 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 Previous3 liters of water is added to 15 liters of mixture of a 20% solution of alcohol in water. The strength of alcohol is now-- NextA bakery opened yesterday with its daily supply of 40 dozen rolls. Half of the rools were sold by noon and 80% of the remaini...
