The number of people who liked both milk and curd is 500.
Here's how you can calculate it:
- The number of people who liked only milk is 720.
- The number of people who liked only curd is 880.
- The number of people who did not like either milk or curd is 400.
- Let x be the number of people who liked both milk and curd.
- We can use the formula: Total = Group 1 + Group 2 - Both + Neither.
- Substituting the values, we get: 2500 = 720 + 880 - x + 400.
- Solving for x, we get: x = 500.
- Therefore, 500 people liked both milk and curd.
The number of people who liked at least one of the drinks is 2100.
Here's how you can calculate it:
- The number of people who liked only milk is 720.
- The number of people who liked only curd is 880.
- The number of people who liked both milk and curd is 500.
- Therefore, the total number of people who liked at least one of the drink is: 720 + 880 + 500 = 2100.