In a survey of 300 housewives, it was discovered that 150 had read magazine A, 200 had read magazine B and 156 had read magazine C. It was further discovered that 48 had read A and B, 60 had read B and C while 52 had read A and C.
Find
1) The number of housewives that had read all three magazines.
2) The number of housewives that had read at least two magazines.
3) The number of housewives that had read only one magazine.​