In a survey of college students, it was found that

356 owned an iPad.

293 owned a laptop.

285 owned a gaming system.

193 owned an iPad and a laptop.

200 owned an iPad and a gaming system.

139 owned a laptop and a gaming system.

68 owned an iPad, a laptop, and a gaming system.

26 owned none of these devices.

(a) How many college students were surveyed? 

Of the college students surveyed, how many owned

(b) An iPad and a gaming system, but not a laptop? 

(c) A laptop, but neither an iPad nor a gaming system?

(d) Exactly two of these devices?

(e) At least one of these devices?

Draw a Venn diagram to obtain the answers.