If 1 / 2 of a number is 20 more than 1 / 5 of the same number, what is the number?
Q1. If 1 / 2 of a number is 20 more than 1 / 5 of the same number, what is the number?
Answer: 200/3
Explanation: Let's denote the number as 'x'. So, (1/2)x = (1/5)x + 20. Simplifying gives (3/10)x = 20, hence x = 200/3.