Post a New Question

set (math)

posted by .

A class of 47 students took examination in algebra and geometry. If 29 passed algebra and 26 passed geometry and 4 failed in both subjects, how many passed both subjects?

With solution please, tnx...

  • set (math) -

    47-29=18 failed algebra
    47-26=21 failed geometry
    4 failed both

    18+21-4=35 failed something
    so, 47-35=12 passed both

  • set (math) -


  • set (math) -


Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question