a survey of reading habits of 100 students showed that 30 read both comics and novels. 10 read neither comics nor novels and twice as many students read comics as read novels. 1. illustrate the information on a Venn diagram. 2. how many students read only

Answer 1

so, only 90 read something. That means that if x read novels, then
x + 2x - 30 = 90
Find x, and then you can proceed from there.

Answer 2

1963359