Question

Suppose that out of 1500 first-year students at ICU, 350 are taking history, 300 are taking mathematics, and 270 are taking both history and mathematics. How many first- year students are taking history or mathematics?

Answer 1

Explanation:

Assuming that the 350 taking history and the 300 taking math each includes the 270 taking both history and math, then:

N(H or M) = N(H) + N(M) − N(H and M)

N = 350 + 300 − 270

N = 380

There are 380 first-year students taking history or mathematics.