Among the 150 people attending GMAT preparation course, if 90 attend Verbal classes, 80 attend Quant classes, and 35 are on a special challenging program and do not attend either the Verbal or Quant classes, how many people attend only Quant classes? (A) 25 (B) 35 (C) 40 (D) 45 (E) 50 87. Answer (A)
A consumer preference survey revealed that out of the 200 surveyed people 80 liked tea and 70 liked both tea and coffee. If 100 of the surveyed people liked neither tea nor coffee, how many of the surveyed people liked coffee but not tea? (A) 10 (B) 20 (C) 40 (D) 50 (E) 60 63. Answer ( B )
plz explain with formulae etc
A consumer preference survey revealed that out of the 200 surveyed people 80 liked tea and 70 liked both tea and coffee. If 100 of the surveyed people liked neither tea nor coffee, how many of the surveyed people liked coffee but not tea? (A) 10 (B) 20 (C) 40 (D) 50 (E) 60 63. Answer ( B )
plz explain with formulae etc
