Need help with a discrete math problem.
There are 30 students enrolled in a math class and each of them attended at least one of the first two lessons. The first lesson was attended by 27 students and the second lesson was attended by 20. How many students attended both of the first two lessons?

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

so wouldn't it be 17 attended both?

Looking for something else?

Not the answer you are looking for? Search for more explanations.