Nathanael Wong

Mathematics

9 June, 06:08

In a group of students, 18 read marketing, 19 read economics, 16read finance, 6 read marketing only, 9 read economics only, 5 read marketing and economics only, and 2 read economic and finance only ... find out

1) how many read all three subjects?

2) how many read finance only?

3) how many read marketing and finance only?

4) how many students are there altogether?

Answer:1) 3

2) 7

3) 4

4) 36