MCQ Practice Mathematics 📖 A student first reduced a number by 20 percent and then increased it again by 20 percent. If the difference between the two n... 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 PreviousA number is selected at random from 40 to 50 inclusive. What is the probability that the number is prime number? NextA third of Karim’s marks is Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in two su...